Free SEO tools are a great way to start learning about how to optimize your site for search engines. They can help you identify problems, find ways to improve your site’s performance, and give you an idea of what the competition is up to.
Here, we’ve gathered together some of the best free SEO tools that will help you get started with your site. We’ll walk through them all and show you how each one works.
![27 Simple and Free SEO Tools [Updated for 2021]](https://buffer.com/library/content/images/library/wp-content/uploads/2014/08/seo-tools1.png)
Table of Contents
Free Online Seo Tools Google
Here at Moz, we understand the value of top-end SEO tools — we’ve designed and built best-in-class search tools for close to 15 years. Premium tools are hugely valuable in SEO when you need higher limits, advanced functionality, stored data, or on-call support.
But for 75 percent of other tasks, a free tool often does the trick.
There are literally hundreds of free SEO tools out there, so we want to focus on only the best and most useful to add to your toolbox. Tons of people in the SEO community helped vet the SEO software in this post (see the note at the end). To be included, a tool had to meet three requirements. It must be:
Widely used and recommended by the SEO community
Offers above-board value + actionable data
Actually, truly free
The tools are categorized by SEO function. Click on a button below to jump to that specific section.
Categories:
Analytics Crawling/Indexing Keyword Research Link Tools Local SEO Mobile SEO Multi-tool On-page SEO Research Site Speed WordPress
The Best Free SEO Tools
Analytics
The best tools to analyze search performance, monitor SERPs, keywords, and competitor analysis:
- Bing Webmaster Tools
While Google Webmaster Tools gets all the glory, folks forget that Bing Webmaster offers a full suite of website and search analytics. Especially useful are keyword reports, keyword research, and crawling data.
Get it: Bing Webmaster
Also useful: Yandex.Webmaster
- Data Studio
If you need to merge data from different sources (say Search Console and Google Analytics), visualize, and share it – this is Google Data Studio’s comfort zone. For an idea of all the SEO tasks and dashboards that you can build for free, check out these Google Data Studio Resources from Lee Hurst.
Get it: Data Studio
- Enhanced Google Analytics Annotations
How do you know if your dip in traffic (or rise) is associated with a Google Algorithm update, or perhaps a major holiday? This is a highly-recommended Google Chrome plugin that overlays additional data on top of your analytics, so you can easily send screenshots to clients showing exactly how outside forces impacted traffic.
Get it: Enhanced Google Analytics Annotations
Alternatives: Panguin Tool, Zeo Tools
- Google Analytics
The big kahuna, and the most widely-used web analytics package on earth. For being free, Google Analytics is surprisingly robust and plays well with other Google products, including Optimize, Search Console, and Data Studio. Some folks have privacy concerns with GA — though Google swears they don’t use this data for search rankings.
Get it: Google Analytics
Alternatives: Clicky, Open Web Analytics
- Search Console
Probably the most useful free SEO tool on this entire list, it’s hard to imagine doing modern SEO without access to the data inside Google’s Search Console. This is the most reliable location for information on how Google crawls and ranks your site, and is one of the only places where you can get reliable keyword data. Search Console limits downloads to 1000 rows, so also bookmark the free Search Console Data Exporter to download up to 25,000 rows at a time.
Get it: Search Console
Helpful Add-on: Search Analytics for Sheets
- Keyword Hero
Did somebody say (not provided)? Keyword Hero works to solve the problem of missing keyword data with lots of advanced math and machine learning. It’s not a perfect system, but for those struggling to match keywords with conversion and other on-site metrics, the data can be a valuable step in the right direction. Pricing is free up to 2000 sessions/month.
Get it: Keyword Hero
- MozCast
The brainchild of Dr. Pete and the original Google SERP tracker, MozCast is the go-to algorithm tracker whenever there’s a big update, or not. Also useful are the SERP tracking features showing the prominence of such features as ads and knowledge panels.
Get it: MozCast
Also useful: Algoroo, Rank Risk Index, Ayima Pulse
Crawling/Indexing
Specific tools to make sure your site is crawlable and optimized.
- Beam Us Up
If you need a free, desktop crawler, you can’t do better than Beam Us Up. While it doesn’t have as many features as Screaming Frog, it does offer 100 percent free crawling with no limits. Windows only.
Get it: Beam Us Up
- Link Redirect Trace
A free Chrome extension, lots of SEOs recommend Link Redirect Trace as the “all-in-one redirect path analyzer.” The extension reveals information about HTTP headers, rel-canonicals, robots.txt, and basic link metrics from LinkResearchTools. The “Save Screenshot” feature is super useful too.
Get it: Link Redirect Trace
- Redirect Path
Similar to Link Redirect Trace, Redirect Path is a nifty tool from the good folks at Ayima that shows redirect paths and header information for every URL you visit. Gotta admit, I’ve used this extension for years and it’s almost “always on” in my browser.
Get it: Redirect Path
- Screaming Frog
Aside from having one of the best Twitter accounts of any SEO tool maker, Screaming Frog is the most popular desktop-based crawler available today. Many people don’t realize that there’s a free version that allows for up to 500 URLs per crawl. While not as fully functional as the paid version, it’s great for small projects and smaller site audits.
Get it: Screaming Frog
- Screaming Frog Log File Analyzer
Most folks in the SEO space are familiar with Screaming Frog, but many don’t realize that the Frog also offers a standalone free/paid Log File Analyzer tool. The free version is very robust, though limited to 1000 lines.
Get it: Screaming Frog Log File Analyser
- SEOlyzer
SEOlyzer is a log analysis tool recommended by Aleyda Solis in her very excellent SEO podcast Crawling Mondays. SEOlyzer is a terrific log analysis tool with some cool features like real-time analysis and page categorization.
Get it: SEOlyzer
- Xenu
Gotta be honest, although Xenu has been on every “free SEO tool” list since the dawn of, no way did I think it would make this one. This Windows-based desktop crawler has been virtually unchanged over the past 10 years. That said, a lot of folks still love and use it for basic site auditing, looking for broken links, etc. Heck, I’m leaving here for sentimental reasons. Check it out.
Get it: Xenu
Keyword Research
Tools to discover what people are searching for, along with volume and competition.
- Answer The Public
It’s hard not to love Answer The Public. The interface has an almost “Cards Against Humanity” rebel vibe to it. Regardless, if you want to generate a massive list of questions from any keyword set, this is your go-to tool.
Get it: Answer The Public
- Keyword Explorer
If you’re not familiar with Moz’s amazing keyword research tool, you should give it a try. 500 million keyword suggestions, all the most accurate volume ranges in the industry. You also get Moz’s famous Keyword Difficulty Score along with CTR data. Moz’s free community account gives you access to 10 queries a month, with each query literally giving you up to 1000 keyword suggestions along with SERP analysis.
Get it: Keyword Explorer
- Keyword Planner
Google’s own Keyword Planner was built for folks who buy Google ads, but it still delivers a ton of information useful for SEO keyword planning. It uses Google’s own data and has useful functions like country filtering. Be careful with metrics like competition (this is meant for paid placements) and volume — which is known to be confusing.
Get it: Keyword Planner
- Keyword Sh****r
Yes, it’s called Keyword Sh****r. It pains me to write this. That said, it says what it does and does what it says. Type in a keyword and it, um, poops out a poop-ton of keywords.
Get it: Keyword Sh****r
- Keyword Surfer
We used to recommend Keywords Everywhere (still a great tool) but they no longer offer a free version. As an alternative, the most popular community-based recommendation—that’s still free—is Keyword Surfer. This Chrome extension gives you keyword search volume in Google search results. We’re also a fan of WMS Everywhere, a Chrome extension that gives you search volume, cost-per-click, and keyword suggestions.
Get it: Keyword Surfer
Also Try: WMS Everywhere
- Ubersuggest
Sometimes I make fun of Neil Patel because he does SEO in his pajamas. I’m probably jealous because I don’t even own pajamas. Regardless, Neil took over Ubersuggest not long ago and gave it a major overall. If you haven’t tried it in a while, it now goes way beyond keyword suggestions and offers a lot of extended SEO capabilities such as basic link metrics and top competitor pages.
Get it: Ubersuggest
Link Tools
Tools to find, evaluate, and process backlink opportunities.
- Disavow Tool
Google makes the Disavow Tool hard to find because most site owners usually don’t need to use it. But when you do, it can be useful for getting penalties removed and some SEOs swear by it for fighting off negative SEO. If you choose to use this tool, be careful and check with this guide on disavowing the right links.
Get it: Disavow Tool
- Link Explorer
Link Explorer is arguably the largest, highest-accuracy link index and the most accurate DA and backlink checker in the SEO world today, boasting 35 trillion links. The free account access gives you 10 queries and 50 rows of data per query every month, plus adds basic link metrics to the MozBar as you browse the web.
Get it: Link Explorer
- Link Miner
Link Miner is a free Chrome extension developed by Jon Cooper, one of the masters of link building. Use it to quickly find broken links on each page, as well as see basic link metrics as you search Google. Simple, easy, and useful.
Get it: Link Miner
- Detailed
Detailed is a unique type of free link research engine, developed by the marketing genius Glen Allsopp (you can find him in the comments below). Detailed focuses on what’s driving links to some of the most popular niches on the web, without the extra fluff that can make reverse engineering success a sometimes time-consuming process. Oh, he’s got a killer newsletter too.
Get it: Detailed
- Backlink Checker
Many people don’t realize that Ahrefs offers a free backlink checker, but they do, and it’s pretty good. It does have a number limitations compared to their full-fledged paid tool. For example, you’re limited to 100 links, and you can’t search by prefix or folder, but it’s handy for those quick link checks, or if you’re doing SEO on a tight budget.
Get it: Backlink Checker
Local SEO
Free tools to optimize your on Google Maps and beyond.
- Google My Business
Basically, this is the #1, must-have tool for Local SEO — especially if you live in a market served by Google. It allows you to claim your business, manage listing information, and respond to reviews — among other things. Claiming your business profile forms the foundation of most other local SEO activities, so it’s an essential step.
Get it: Google My Business
- Google Review Link Generator
The Google Review Link Generator by Whitespark solves a simple problem – how do you give your customers a URL to leave a Google review for your business? Reviews drive rankings, but Google doesn’t easily provide this. This generator makes it easy.
Get it: Google Review Link Generator
- Local Search Results Checker
One of the hardest parts of Local SEO is figuring out rankings from any location — especially when Google stubbornly wants to serve results from the location you’re in. BrightLocal solves this with a quick local ranking tool that can virtually drop you into any location on earth to check actual local rankings.
Get it: Local Search Results Checker
- Moz Local Online Presence Tool
How consistent is your business information and local citations across the internet? Moz Local lets you quickly check how your business shows up across the web in the major data aggregators that Google and others use to rank local search results. Very handy to understand your strengths and weaknesses.
Get it: Moz Local Online Presence Tool
Mobile SEO
Tools to optimize your website in Google’s mobile-first world.
- Mobile First Index Checker
Mobile versions of websites often differ significantly from their desktop versions. Because Google has switched to mobile-first indexing, it’s important that major elements (links, structured data, etc.) match on both versions. A number of tools will check this for you, but Zeo’s is probably the most complete.
Get it: Mobile First Index Checker
- Mobile SERP Test
It’s amazing how mobile search results can vary by both location AND device. MobileMoxie’s mobile SERP test lets you compare devices side-by-side for any location, down to specific addresses.
Get it: Mobile SERP Test
- Mobile-Friendly Test
The gold standard for determining if your page meets Google’s mobile-friendly requirements. If your page passes the test, then Google counts it as mobile-friendly, which is a bonafide (albeit small) ranking factor. If your page isn’t mobile-friendly, it will give you specific areas to address.
Get it: Mobile-Friendly Test
Multi-tool
Free SEO tools that have so many functions, they have their own special category.
- Chrome DevTools
The sheer number of SEO tasks you can perform—for free—with Chrome DevTools is simply staggering. From JavaScript auditing to speed to On-Page SEO, some of the best features are hidden away but totally awesome. Need some specific ways to use it for SEO? Check out these resources here, here, and here.
Get it: Chrome DevTools
- Marketing Miner
Marketing Miner has a low profile in the United States, but it’s one of the best-kept secrets of Eastern Europe. If you need to pull a lot of SERP data, rankings, tool reports, or competitive analysis, Marketing Miner does the heavy lifting for you and loads it all into convenient reports. Check out this list of miners for possible ideas. It’s a paid tool, but the free version allows to perform a number of tasks.
Get it: Marketing Miner
- MozBar
One of the original SEO toolbars, the MozBar has seen significant upgrades over the years. Log in with a free Moz account and get link metrics as you browse the web, perform on-page analysis, and SERP analysis. The free version is super-useful by itself, while Pro users get additional functionality like advanced keyword suggestions.
Get it: MozBar
- SEMrush
Like Moz, SEMrush offers a full suite of all-in-one SEO tools, and they have a free account option that works well if you only work with a single website, or only need a quick peek at top-level data. The free account level gives you access to one “project” which includes basic site auditing, as well as limited keyword and domain reporting.
Get it: SEMrush
- SEO Minion
SEO Minion is a very popular Chrome extension that goes beyond most SEO toolbars. Some of the quick functions it performs include analyzing on-page SEO, check broken links, Hreflang checks, a SERP preview tool, and a nifty Google search location simulator. Definitely worth trying out.
Get it: SEO Minion
- SEOquake
Out of all the SEO toolbars available on the market, SEOquake is probably the most powerful, and comes with a plethora of configuration options — so you can configure it to adjust to your SEO needs. Aside from offering a boatload of data for every URL you visit, you can also perform basic on-page audits, compare domains, and export your data.
Get it: SEOquake
- Sheets for Marketers
Sheets for Marketers isn’t a tool per se, but a website that contains over 100+ free templates to perform a huge number of tasks using Google Sheets. Find powerful free sheets for everything including competitive analysis, site audits, scraping, keyword research, and more. This is a website for your bookmarks.
Get it: Sheets for Marketers
- Small SEO Tools
Small SEO Tools is a favorite among old-time SEO. It comprises a collection of over 100 original SEO tools. Each tool performs a very specific task, hence the name “small”. What’s great about this collection is that in addition to more traditional toolsets like backlink and keyword research, you’ll find an abundance of hard-to-find and very specific tools such as proxy tools, pdf tools, and even JSON tools.
Get it: Small SEO Tools
- Varvy
Varvy offers a suite of free website audit tools from the folks at Internet Marketing Ninjas. Most of the checks are of the on-page type concerning crawling and best practices. Varvy also offers separate stand-alone tools for page speed and mobile SEO. Overall, this is a good quick tool to start an SEO audit and to perform basic checklist tasks in a hurry.
Get it: Varvy
Alternatives: SEO PowerSuite, CanIRank
On-page SEO
Tools to help you maximize your content potential at the page level.
- Natural Language API Demo
While there is some debate over how actionable Google’s Natural Language API is for SEO, there is no denying it’s a cool tool with lots of advanced analysis. The free demo allows you to analyze the text of a single page at a time and lets you see how a search engine would view entities, sentiment analysis, syntax, and categorization.
Get it: Natural Language API
See also: Advanced SEO Strategies using Natural Language Processing
- Rich Results Test
Did you implement review rating stars in your JSON-LD, and want to see if your markup is valid for Google’s Rich Results? Getting a passing grade doesn’t mean your page will automatically display rich results in the SERPs, but think of it as the cost of admission (the cost being free, of course.)
Get it: Rich Results Test
- Structured Data Testing Tool
Bookmark, bookmark, bookmark this page. Google’s Structured Data Testing tool is essential for not only troubleshooting your own structured data but performing competitive analysis on your competitor’s structured data as well. Pro Tip: You can edit the code within the tool to troubleshoot and arrive at valid code.
Get it: Structured Data Testing Tool
- Tag Manager
On the surface, Google Tag Manager serves a simple purpose of allowing you to inject “tags” (such as Google Analytics) into your HTML. Beyond that, advanced users can leverage Tag Manager for a host of SEO functions. While Google recommends against using Tag Manager to insert important elements like structured data, it remains useful for a ton of SEO-related activities.
Get it: Tag Manager
- View Rendered Source
This simple JavaScript auditing tool does one thing, and it does it very well. View Rendered Source is a free Chrome plugin that allows you to easily see the fully rendered DOM of any URL, and compare it to the original HTML. Great for JavaScript auditing and troubleshooting.
Get it: View Rendered Source
Research
Cools free tools for competitive, historical, and technological analysis.
- BuzzSumo
As an SEO research tool, BuzzSumo is awesome. Its Chrome extension is one of the few tools available that deliver reliable social share count estimates for any piece of content. You don’t get as much data with a free account, but you still get access to top content and trending data. One of our favorite tools.
Get it: BuzzSumo
- Hunter
Hunter is a popular email search tool, and definitely the most popular free email finder. Use it to find the email address associated with any company or individual, and verify any email address you already have. 50 free queries/month before paid plans kick in.
Get it: Hunter
Also popular: Viola Nobert
- SimilarWeb
SimilarWeb is like competitor analysis on steroids. You can research your competitor’s traffic, top pages, engagement, marketing channels, and more. The free offering is limited to five results per metric, but it’s often enough to grab a quick data point.
Get it: SimilarWeb
- Wappalyzer
There are lots of tools that help you analyze what technology stacks a website runs on, but Wappalyzer is an SEO favorite. It’s 100 percent free (unless you want advanced reporting) and will instantly tell you what technology a site is using. For example, are they using Yoast or All In One SEO Pack?
Get it: Wappalyzer
- Wayback Machine
Gotta be honest, I personally use the Wayback Machine 2–3 times a week. It’s perfect for uncovering historical data. You can even find a trove of historical robots.txt files archived. There are a ton of other SEO uses for Wayback Machine you may find useful. 100 percent free.
Get it: Wayback Machine
- Name.com bulk domain search
Screenshot of Name.com bulk domain search
Simply input the domain names you want to check — all at the same time, and it will quickly tell you if they are available. Beats the heck out of typing them in one at a time using Godaddy.
Use it: Name.com
Site Speed
Tools to speed up your site in order to improve engagement, increase conversions, and rank higher.
- Cloudflare
There are so many good things to say about Cloudflare, it’s difficult to know what to include here. Aside from a free CDN to speed up your site, it also allows for easy DNS management, and 100 percent free DDoS protection. You can run on a paid plan forever, but if you’re ready to upgrade, the pro features are super cool and amazingly affordable.
Get it: Cloudflare
- GTmetrix
GTmetrix is one of many webpage speed performance tests that SEOs love to use. It provides familiar reports such as PageSpeed, YSlow, and Waterfalls, as well as automatically visualizing historic data for each page it analyses.
Get it: GTmetrix
- Lighthouse
Lighthouse is Google’s open-source speed performance tool. It’s also the most up-to-date, especially in terms of analyzing the performance of mobile pages and PWAs. Google not only recommends using Lighthouse to evaluate your page performance, but there is also speculation they use very similar evaluations in their ranking algorithms.
Get it: Lighthouse
- Page Speed Insights
Page Speed Insights is another Google tool built on top of Lighthouse, with one key added metric: Field Data. Field Data uses metrics collected by the Chrome User Experience Report so you can see how your page performs with real users across the globe. Not every page has data, but it’s super useful when it does.
Get it: Page Speed Insights
- SpeedMonitor.io
If manually logging into a speed tool to check your performance each day isn’t your thing, consider SpeedMonitor.io. It uses Lighthouse data to gauge performance, then tracks it over time and stores the results — all for free. You can even add competitor tracking and on-demand audits.
Get it: SpeedMonitor.io
- WebpageTest
Webpage test is another performance tool similar to GTMetrix. It breaks down performance into easy-to-understand grades, along with some of the most detailed performance reports found anywhere.
Get it: WebpageTest
WordPress
To be honest, there are literally hundreds of WordPress plugins that can be helpful for SEO. You almost always want a “general” SEO plugin, and we’ve listed two below. For others, you have a lot of options, but this list from Kinsta is a good place to start.
- Rank Math
The “new” kid on the WordPress SEO plugin block, RankMath is quickly earning a cult following among certain SEO pros. It’s fully functional and comes with some cool features like built-in redirection, which means needing to install fewer plugins or pay for upgrades. Worth checking out.
Get it: Rank Math
- Yoast SEO
Yoast is the “name” in WordPress SEO. The most trusted name, the most installed (30 million sites) and often, the most innovative. With the help of our friend Jono Alderson, they’ve created some amazing advances in the delivery of structured data. I personally use Yoast on most of my WordPress sites, and they are obviously highly recommended.
Get it: Yoast SEO
Alternatives: All in One SEO Pack, SEOPress
Bonus: Free Google Sheet of All 60 Tools
We’ve included a Google Sheet containing all 55 tools listed above. You can make a copy of the sheet and file away for your personal use, or share with your team.
Get the Free SEO Tool Sheet
Special Thanks
A lot of smart SEOs deserve credit for helping out with the recommendations in this post. A number of folks contributed suggestions from Twitter, Facebook, and Reddit.
A comprehensive list of SEO tools and resources is maintained by Saijo George. It’s continually updated and well maintained.
free seo tools for beginners
Whenever I dream up a home improvement project for my place, I end up working smartest and fastest when I have the right tools at my disposal. It’s amazing the difference a good tool can make – and the extra time it takes to get work done without a helpful tool.
Fast-forward to online marketing. How can you work smarter and faster with SEO?
It starts with having the right tools.
I’ve collected a big sampling of the best free SEO tools on the market—tools with a wide variety of uses and covering a number of common needs. These tools are fast, free, and easy-to-use. I hope you find one or two (or twenty) you can put to good use, today.
- Google PageSpeed Insights
Check the speed and usability of your site on multiple devices
Limitations: None
Enter a URL and this tool will test the loading time and performance for that URL on desktop and mobile. It then grades your site’s performance on a score from 0 – 100. It tells you exactly how fast it takes to load the site according to different metrics, and also suggests areas for improvements.
Alternatives:Pingdom, WebPageTest, and GTMetrix
- Ahrefs Webmaster Tools
Run a technical audit of your site
Limitations: 5,000 crawl credits per project per month
Sign up for Ahrefs Webmaster Tools, verify your website and you’ll be able to audit your website for over 100+ technical SEO issues. The tool also gives suggestions on how to fix them.
After running an audit, it also suggests areas where you can improve your internal linking, which is helpful in boosting your rankings in search engines.
This tool also allows you to see your site’s organic keyword rankings as well as who’s linking to you.
Alternatives:Screaming Frog (audit), Beam Us Up (audit)
- Answer the Public
Hundreds of keyword ideas based on a single keyword
Limitations: Two free searches per day
Enter any relevant keyword, and Answer the Public will provide a huge list of long-tail keyword opportunities, plus common questions asked.
Alternatives: KeywordTool.io, UberSuggest, Keyword Sheeter, Keyword Generator
- Google Analytics
Complete web stats and search insights
Limitations: No limitations for its usage, but queries that are sending you organic traffic are hidden
Quite possibly the most powerful free analytics tool available, Google Analytics tracks pretty much every bit of traffic you can imagine on your website—where it comes from, which page is receiving it and so on.
While it’s not purely for SEO, it’s still a helpful tool to track if you’re getting traffic from organic search.
However, Google Analytics has since stopped showing which keywords are sending you those traffic. You’ll have to pair it with a tool like Keyword Hero to uncover what’s behind “(not provided).”
Alternatives:Matomo, Open Web Analytics, and Clicky
- Google Search Console
Constant website analysis, alerts, and error reports
Limitations: Only shows a handful of technical SEO issues, the top 1,000 backlinks and top 1,000 organic keywords
Google Search Console gives you a taste of what the most used search engine thinks of your website. You can use it to check and fix technical issues on your website, see important SEO data like clicks, impressions and average ranking position, submit sitemaps and more.
If ranking in search engines like Bing and Yandex are important to you, then take note that they have their own “search console” too.
Alternatives:Bing Webmaster Tools, Yandex Webmaster Tools
- Ahrefs’ Backlink Checker
Comprehensive link analysis
Limitations: Free for the top 100 backlinks
The free version of Ahrefs’ Backlink Checker shows the top 100 backlinks to any website or URL, along with the total number of backlinks and referring domains (links from unique sites), Domain Rating (DR), and URL Rating (UR) where applicable.
A great way to use this tool is to paste your competitor’s website and find potential link building opportunities.
Alternatives: Moz Link Explorer
- Google Ads Keyword Planner
Know what people search for
Limitations: You’ll need to run an ad campaign to see exact search volumes
Enter a keyword or group of keywords into the tool, and Google Keyword Planner will return all sorts of helpful stats to guide your keyword strategy: monthly search volume, competition, and even suggested terms you might not have considered.
Alternatives:Bing Keyword Planner
- SERPSim
Preview how your web pages will look in Google’s search results
Limitations: None
See how your meta title and description will appear in the search results before you even publish your web page. Works for desktop and mobile.
Check for truncation issues and fix them instantly.
Alternatives: Portent’s SERP Preview Tool
- Google Trends
See the relative search popularity of topics
Limitations: None
Google Trends shows the popular search terms over time, which is useful for uncovering seasonal variations in search popularity amongst other things. Compare multiple terms to see the relative popularity.
- Ahrefs’ SEO toolbar
Check the broken links, redirect chains, nofollow links and on-page elements for any webpage
Limitations: Technical and on-page SEO features are free, but you’ll need an Ahrefs account to see SEO metrics within the SERPs
The Ahrefs SEO toolbar is a free Chrome and Firefox extension that allows you to check for broken links, trace redirect chains and highlight nofollow links for any webpage. It also generates an on-page SEO report that includes the webpage’s:
Title
Meta description
Word count
Headers
Hreflang tags
Canonicals
OG tags
This makes analyzing any page much easier and faster.
If you have access to a paid Ahrefs account, you’ll also be able to see important keyword metrics like search volume, CPC and keyword difficulty within the SERPs.
Alternatives:Detailed SEO Extension, SEO Minion, LinkMiner (broken links), Ayima Redirect Path (redirect tracing)
- Moz Local Listing Score
See how your local business looks online
Limitations: Data is only available for three countries: US, Canada & UK
Moz crunches data from more than 10 different sources—including Google, Yelp, and Facebook—to score your brick-and-mortar business on how it looks online. Results come complete with actionable fixes for inconsistent or incomplete listings.
- Yoast SEO
Optimize your blog posts for search engines
Limitations: Some data limitations, which you can unlock via a premium account
Enter the main keyword for your blog post and Yoast SEO will suggest how to tweak your blog post to optimize it for search engines.
Alternatives: Rank Math, All in One SEO Pack, The SEO Framework
- JSON-LD Schema Generator For SEO
Customize how your web pages appear in the search results
Limitations: None
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Create custom code so that your reviews, events, organizations, and people are displayed the way you want in Google’s search results. Once you’ve created your schema code, copy and paste into your website.
Then, use the next tool to check if the implementation has been done correctly.
Alternatives:Merkle’s Schema Markup Generator
- Classy Schema Structured Data Viewer
Check if your structured data was implemented correctly
Limitations: None
Always double check to make sure you’re implementing the technical aspects of SEO right. Use this tool to see if your structured data/schema markup was done correctly.
Alternatives: Google Structured Data Testing Tool (deprecating soon), Google’s Rich Results Test (currently does not test for all possible schema markups)
- SimilarWeb
View site stats for any domain
Limitations: You’ll need a paid account to see every data point, but the free version is good enough to get a snapshot of your competitor’s activity
Use this tool to estimate how much traffic a website gets. See a breakdown of traffic sources, locations, and more. A helpful tool for competitor research.
- SERP Robot
See your ranking position for up to five keywords
Limitations: None
Enter any website or web page and up to five keywords to see where you rank for each of them. Check your competitors’ rankings too.
- XML Sitemaps
Create a sitemap
Limitations: Free up to 500 pages
Simply enter your site’s URL and some optional parameters, and XML Sitemaps will create a sitemap that you can upload to Google Search Console and Bing Webmaster Tools.
- Robots.txt Generator
Generate a robots.txt for your site
Limitations: None
Robots.txt files let the web robots know what to do with a website’s pages. When a page is disallowed in robots.txt, that’s instructions telling the robots to completely skip over those web pages.
Alternatives: YellowPipe’s Robots.txt Generator
- Copyscape
Check for duplicate content
Limitations: Only the top 10 results are shown
Enter a URL for a blog post or website, and Copyscape can tell you where else that content exists online. You might find results that you’ll need to follow-up with to help get your SEO in order.
- Google Alerts
Get alerted of any online mentions of your brand, product or company
Limitations: None
Enter your brand, company or product name and Google will send you an email if it finds any webpage mentioning those terms.
- Screaming Frog SEO Log File Analyser
Upload and analyze your log files
Limitations: Up to 1,000 lines
If you’re interested to find out what Googlebot is doing on your site, you can look into your website’s log files. Screaming Frog’s Log File Analyser allows you to do that for free.
Alternatives: SEOlyzer
- Exploding Topics
Discover the hottest trends
Limitations: None
SEOs often target topics with high search volume, but that means targeting topics that are already popular. What if you could find and target topics right before they hit the mainstream?
Use this tool to do that.
Alternatives: Glimpse, Treendly
- The Hreflang Tags Generator Tool
Generate hreflang tags for your multi-language/multi-country site
Limitations: None
If your site targets different countries or different languages, you’ll need to set up your hreflang tags properly. Unfortunately, it’s quite easy to mess up, which can cause issues for your site.
Enter your site’s URL, the language and country of the URL and the tool will generate the necessary hreflang annotations for you.
- Keyword Surfer
See search volumes and CPC data within the SERPs
Limitations: None
Install this free Chrome extension and you’ll be able to see search volumes and CPC data for any keyword you enter into Google. You’ll also see suggested keyword ideas that are related to your query.
Alternatives: WMS Everywhere
- Google Mobile-Friendly Test
Check your site’s mobile-friendliness
Limitations: None
Enter any URL and this tool will tell you if it’s mobile-friendly. It also tells you what went wrong and what you need to fix.
- Website Authority Checker
Check your website’s Domain Rating
Limitations: None
Enter your URL and see the Domain Rating (DR) of your website. Generally speaking, the higher the number, the more authoritative your website.
A high DR has been shown to correlate positively with higher Google rankings.
Alternatives: Moz’s Domain SEO Analysis Tool
- Whitespark’s Google Review Link Generator
Create a link for customers to review your business on Google
Customer reviews are important for local SEO purposes. This tool allows you to create a shareable link for customers to review your business on Google.
Further resources
Putting together a list of free SEO tools can be a daunting task. There are hundreds out there! I aimed to grab the ones that we’ve found valuable here at Buffer and the ones you can use via the web within minutes to get some amazing insights.
Conclusion
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