Free SEO audit tools
Site auditing tools can be pricey, but plenty offer free versions or a free one-off check.
Even if a free site audit tool doesn't provide everything you can get from a paid one, they're useful for quick one-off checks to spot opportunities to improve your SEO.
Sort Price
Free
With to thruuu, you will get comprehensive insights about your competition content and details about the Search Engine Result Page (SERP) of Google.
Freemium
Content briefing, Content writing, Structured Data
Entity-based SEO Platform, to help you rank higher & stay ranked longer.​
Freemium
All-in-one service for website speed test, web performance monitoring and website analysis (speed, SEO, quality, security). Web performance has never been so easy.
Free
This plugin will improve SEO by helping search enginess better index your site using sitemaps.
Freemium
Bulk check URL lists for status code, redirects (301, 302, chains, loops), HTTP response headers. Download for Windows & Mac OS.
Free
Find out which URLs in your XML sitemap are valid with Map Broker v0.1 by Michael King(iPullRank).
Freemium
Free and fast analysis of your entire website - duplicate content, broken links, internal page rank, redirections and more. Also creates an XML sitemap.
Free
Website Grader is a free online tool that grades your site against key metrics like performance, mobile readiness, SEO, and security.
Free
Free Online Google Sitemap Generator. XML-sitemaps.com provides free online sitemap generator service, creating an XML sitemap that can be submitted to Google, Bing and other search engines to help them crawl your website better. It will also generate an HTML site map to allow your website visitors to navigate easier.
Free
See how well your website performs. Then, get tips to improve your user experience.
Free
This tool recursively crawls your website and finds unused CSS selectors
Free
Check how much time it takes to load the first byte of a given web page from multiple locations
Freemium
Use Surfer to generate content plans for any domain in a couple of clicks. Write high-quality and SEO-friendly content to win high positions in Google. Sign up now!
Free
Test your publicly accessible page to see and validate the structured data it contains
Free
You need effective SEO tools which are 100% free? Check out our Search Engine Optimization tools for checking backlinks, tracking keyword positions and more.
Free
Tired of inaccurate and outdated SERP snippet generators? SERPsim is based on the very latest google pixel limits and is a full-fledged SERP simulator. Try it!
Freemium
The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links, images, CSS, script and apps from an SEO perspective.
Free
Generate a robots.txt file for free with this easy-to-use tool. Make sure search engine crawlers are crawling and indexing your site.
Free
Test your publicly accessible page to see which rich results can be generated by the structured data it contains.
Free
Efficiently analyze each hi-res image and find the best dimensions for embedding as responsive images in your site
Freemium
Use this free Website Speed Test to analyze the load speed of your websites, and learn how to make them faster.
Free
Looking to get the most out of your Google Search Console optimization? Try out Page Outil today to take full advantage of your GSC data.
Free
Onely Made for Geeks [OMFG] is Onely’s official free toolset that allows you to access your website’s rendering cost, JavaScript injected elements, and indexed HTML and JS code.
Free
Free
You can see the key differences between your desktop and mobile site with MFI Checker - Zeo's Mobile-first Indexing tool.
Free
With Meta Tags you can edit and experiment with your content then preview how your webpage will look on Google, Facebook, Twitter and more!
Free
A Schema.org structured data generator that supports the creation of JSON-LD markups. Including all of the required item properties and more.
Free
Configure and download your performance budget for Google Lighthouse
Free
Cumulative Layout Shift (CLS) Visualiser.
Free
Is keep alive enabled on your web server? Use our SEO tool to check the Persistent Connection status of your website. Check multiple URLs with Bulk mode.
Free
One of the easiest ways to add Schema's structured markup to a page is to use JSON-LD. With this tool you can quickly generate the correct JSON-LD for any
Free
Check if the site is taking advantages of the latest HTTP 2 protocol for better content delivery
Free
Free bulk and single URL server header response code checker and meta refresh detection script.
Free
Easily check status codes, response headers, and redirect chains.
Freemium
GTmetrix is a free tool to test and monitor your page's performance. Using Lighthouse, GTmetrix generates scores for your pages and offers actionable recommendations on how to optimize them.
Free
Search Console tools and reports help you measure your site's Search traffic and performance, fix issues and make your site shine in Google Search results
Free
Enter any domain, and we'll show you top competitive SEO metrics like
Domain Authority, top pages, ranking keywords, and more.
Freemium
Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.
Free
Our editors help you build FAQ, How-to and Video pages that contain the structured data markup needed to gain Google Rich Snippets. Or try out our Structured Data Visualiser 🤓
Free
Sign in or signup for Bing Webmaster Tools and improve your site’s performance in search. Get access to free reports, tools and resources.
Free
Generate easily the hreflang annotations following Google's specifications for your pages by using the hreflang tags generator tool.
Freemium
Analyze your own website and find out why you’re not getting more leads from it. Get detailed reports on all your SEO issues and start fixing them right away.
Freemium
All-in-one, Backlink Analysis, Competitor analysis, Keyword research, Rank tracking, Site Auditing
Web-based
You don't have to be an SEO pro to rank higher and get more traffic. Join Ahrefs – we're a powerful but easy to learn SEO toolset with a passionate community.
