Free SEO audit tools
Site auditing tools can be pricey, but plenty offers 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 helpful to spot opportunities to improve your SEO.
251 tools
- PaidAn all-in-one SEO tools that can help you with backlink analysis, keyword research, site auditing and more.All-in-one, Backlink Analysis, Competitor analysis, Keyword research, Rank tracking, Site Auditing
Ahrefs
Web - PaidUse Surfer to quickly generate content plans for any domain. Write high-quality, SEO-friendly content to imporve your organic traffic.Content writing, Content briefing, Keyword research, Site Auditing
Surfer SEO
Web - FreeSEO audit tool with free PDF! Scan your website in seconds for common on-page SEO fixes, plus see organic keywords, links, and more.SEO checker
SEO Auditor
Web - FreeUnderstand how your site is performing in search, as well as identifying any issues that need fixing using Google Search Console. From monitoring, maintaining, to reporting, this tool does it all.Site Auditing, Web Analytics
Google Search Console
Web - PaidEntity-based SEO Platform, to help you rank higher & stay ranked longer.Content briefing, Content writing, Structured Data
InLinks
Web - FreeImprove your SEO by using this plugin that generates sitemaps, enabling search engines to better index your site.Plugins/Extensions, XML Sitemaps
XML Sitemaps plugin
WordPress - PaidDareboost provides an overview of your site speed, SEO, quality and security in minutes, including tips on how to improve optimisation.Site speed
Dareboost
Web - PaidCheck all URLs in one go for status code, redirects, and HTTP response headers. This app is suitable for both Windows and Mac OS.SEO crawler
HEADMasterSEO
Mac Windows - PaidCopyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your text is original.Plagiarism checker, Site Auditing
Copyscape
Web - FreeUse this tool to spot the URLs in your XML sitemap that are valid, highlighting the ones that are invalid so you can remove them.XML Sitemaps
Map Broker XML Sitemap Validator
Web - PaidSiteliner provides an analysis of your site within minutes, enabling you to spot errors that can be quickly be fixed.Duplicate Content
Siteliner
Web - FreeUse this tool to identify how your site is performing against key metrics, followed by tips on how to improve.SEO checker
Website Grader
Web - PaidThe Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links, images, CSS, script and apps.SEO crawler
Screaming Frog SEO Spider
Mac Windows - FreeUse this tool to generate an XML sitemap for your site with the click of a button.Site Auditing
XML Sitemaps
Web - FreeUse this tool to measure your site's performance, including tips on how you can create a better user experience.Site speed
web.dev Measure
Web - FreeCheck your site speed with just a click of a button using Wattspeed.Site speed
Wattspeed
Web - FreeUse this tool to crawl your site to detect unused CSS selectors.Site speed
Unused CSS finder
Web - FreeUse this tool to check how long it takes for your server to respond to requests made by the browser.Site speed
TTFB Test
Web - FreeBrowser extensions, Site Auditing
Quick Click Website Audit
Chrome - FreeUse this tool to view how your page looks with the structured data it contains.Structured Data
Structured Data Testing Tool
Web - FreeA simple free browser extension that shows you status codes and redirects for the URL you've visited within your browser.Browser extensions, Site Auditing
Link Redirect Trace
Chrome Firefox - FreeUse SERPSim to generate snippets for the SERP using the latest Google pixel limits.Meta Optimisation
SERPSim
Web - PaidLog File Analysis
SEOLyzer
Web - FreeGet a better understanding of how search engines view your page by using this tool. It shows you how a browser renders a page, rather than the server.Browser extensions, Site Auditing
View Rendered Source
Chrome - FreeUse this tool to generate a robots.txt file, ensuring search engine crawlers are crawling and indexing your site.Site Auditing
Ryte Robots.txt Generator
Web - FreeUse this tool to see which rich results can be generated by the structured data a page contains.Structured Data
Rich Results Test
Web - FreeUse this tool to analyse hi-res images, finding the best dimensions for embedding as responsive images in your siteSite speed
Responsive Breakpoints
Web - PaidUse the Pingom Site Speed Tool to analyse your site speed and how to make this it faster.Site speed
Pingom Site Speed Tool
Web - FreeUse this tool to analyse the speed of your site.Site speed
PageSpeed Insights
Web - FreeFrom page by page analysis, keyword research and a SERP preview, optimise your site using this all-in-one tool.Meta Optimisation
Page Outil: GSC Optimization
Web - FreeOnely 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.Site Auditing
Onely JavaScript SEO Tools
Web - FreeYou can see the key differences between your desktop and mobile site with MFI Checker - Zeo's Mobile-first Indexing tool.Site Auditing
Mobile First Indexing Test Tool
Web - FreeWith Meta Tags you can edit and experiment with your content then preview how your webpage will look on Google, Facebook, Twitter and more!Meta Optimisation
Meta Tags
Web - FreeA Schema.org structured data generator that supports the creation of JSON-LD markups. Including all of the required item properties and more.Structured Data
Merkle Schema Markup Generator
Web - FreeAn extension that is compatible across multiple browsers that unveils structured metadata embedded within HTML documents and web pages.Browser extensions, Site Auditing, Structured Data
OpenLink Structured Data Sniffer
Chrome Firefox - FreeConfigure and download your performance budget for Google LighthouseSite speed
Lighthouse performance budget generator
Web - FreeCumulative Layout Shift (CLS) Visualiser.Site speed
Layout Shift GIF Generator
Web - FreeSite speed
Keyword-driven Site Speed Comparison
Web - FreeIs 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.Site speed
keep-alive Validation Tool
Web - FreeOne 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 anyStructured Data
JSON-LD Schema Generator
Web - FreeCheck if the site is taking advantages of the latest HTTP 2 protocol for better content deliverySite speed
HTTP/2 Test
Web - FreeFree bulk and single URL server header response code checker and meta refresh detection script.Site Auditing
HTTP Status Codes Checker
Web - FreeBulk check status codes easily for up to 100 URLs. Receive detailed insights on their HTTP headers, status codes and redirect chains.Site speed
HTTP Status
Web - PaidGTmetrix 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.Site speed
GTMetrix
Web - FreeSite Auditing
Google’s Mobile Friendly Testing Tool
Web - FreeEnter any domain, and we'll show you top competitive SEO metrics like Domain Authority, top pages, ranking keywords, and more.SEO checker
Free Domain SEO Analysis Tool
Web - PaidLog File Analysis
Logflare
Cloudflare - FreeOur 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 🤓Site Auditing
Classy Schema
Web