14 Best SEO Audit Tools

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In 2022, the commercial success of online brands strictly depends on their correct approach to marketing. Therefore, optimizing a company for search engines is essential – due to statistics, more than 60% of users visit one of 10 SERP websites. Relevance is the apparent indicator that determines the site’s position in the search result list, and it’s a primary goal for many online marketers. Therefore, knowing what to consider when improving such a parameter is necessary, which can be reached using online SEO audit tools. But firstly, let’s discover the latest optimization trends widely implemented nowadays.

Google and other systems dictate their continuously changing rules, and it’s impossible to determine what’s the most necessary for the specific case. However, web analysts and SEO specialists claim that several efficient procedures can severely improve the relevance and help websites rank higher. Here, you can find the most popular:

  • Content improvement. Providing engaging, unique, and user-oriented information and optimizing it with keywords and links determines if the search engine considers it suitable for the request.
  • Core web vitals. Loading speed, first input delay, and layout shift are obligatory for improving user experience.
  • People also ask. The list of popular queries appearing in SERP includes keywords corresponding to the topic people search with Google (links lead to the relevant websites).
  • AI-generated content. Modern companies use tools that provide unique headings, meta tags, specific content, etc.
  • Mobile-friendly sites. It’s necessary to have a website for convenient use with portable devices due to their prevalence in users and specific Google algorithms (mobile-first indexing).
  • Snippets. The text in the upper part of search results should briefly and adequately describe the content the user will meet when investigating the site.

SEO audit tools are the priority for online marketing specialists due to their crucial role in the site’s analysis. They help understand if the strategies are efficient and if the website suits the modern search algorithms. So, let’s find the most popular instruments and know why users choose them in 2022.

14 SEO Audit Tools

The free and paid instruments provide a detailed analysis of the site’s structure and content and help define what should be optimized to improve the marketing efficiency. Each audit instrument is unique and provides specific functions for proper analysis of the current structure of the website and its content.

Plerdy SEO Checker

14 Best SEO Audit Tools-01

Andrew Chornyy founded the free SEO site audit tool to help users improve their sites and endow them with modern qualities to improve relevance. There are two audit options:

  • Web page. It represents the analysis of the structural elements such as H1-H5 titles, meta tags, images (present/missing ALT attributes), duplicate URLs, etc.
  • Text. The tool analyzes the critical content’s parameters such as the number of unique words, percentage of stop words, water, readability, sentence length, characters excluding spaces, and others.

The instrument is highly efficient, confirmed by cooperation with authoritative brands such as Honda, ANEX Tour, Huggies, SoftServe, and KredoBank.


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Dmytro Gerasymenko created the popular site SEO audit tool that represents the important on-page SEO characteristics. The instrument’s filtering opportunities allow users to choose what parameters they want to check. So, It’s primarily used to analyze the following:

  • HTML and social tags.
  • Content quality.
  • Inbound and outbound links.
  • Organic traffic.
  • Referring domains.
  • Image and CSS resources.

Netflix, Adobe, Linkedin, Pinterest, and eBay regard Ahrefs as one of the best SEO audit tools.

Netpeak Spider

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Artem Borodatyuk founded the tool for search marketing agencies, web promotion consultants, and product development companies. Besides standard SEO audit, it allows website parsing and data extraction, generating site XML maps, and other functions. The benefits of Netpeak Spider are:

  • Checking 80+ SEO parameters.
  • Google Analytics integration.
  • Measuring page rank.
  • Source code search.

Such famous brands as Shopify, OLX, Wargaming.net, Movavi, Thomson Reuters, and others highly evaluate the SEO audit tool.

Moz Pro

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Rand Fishkin and Gillian Muessig founded the Google SEO audit tool that helps sites rank higher and improve their online presence. Online marketers primarily use it to understand better what the audience looks for with search engines and detect flaws in the site’s content and internal structure. It allows the following procedures:

  • First, target the specific keywords considering the latest trends.
  • See what users search locally or globally.
  • Finally, determine the proper link-building strategy.

TopSpot, Virtru, 99designs, Zillow, and Beacon are the brands that trust Moz Pro.


14 Best SEO Audit Tools-05

Jeremy Duboys and Seth Besmertnik are the founders of the SEO audit tool. The instrument provides particular opportunities to reach marketing success and get more targeted traffic. Its primary functions are:

  • Track keyword rankings.
  • Research targeted words and competitors.
  • Create highly efficient content.
  • Measure the site’s impact.

The conductor is used by famous brands such as Coursera, Siemens, Netgear, Citi, and LogMeIn.


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Oleg Shchegolev created a famous free SEO audit tool that millions of marketing specialists use. Its primary goal is to provide a straightforward and efficient algorithm for gathering the website performance data to improve the site’s relevance. The functions are the following:

  • Technical SEO: content, meta tags, HTTPS protocols.
  • Reporting: crawl ability, internal links, website performance.
  • Task prioritization: ranking issues depending on the priority to correct them.

Samsung, Tesla, Apple, Forbes, Vodafone, and others are the clients that regularly use SEMrush for SEO audits.

Screaming Frog

14 Best SEO Audit Tools-07

Dan Sharp founded an SEO audit tool to help online firms extract the essential data and improve critical search engine optimization parameters. Even the free version has the particular advantages:

  • Detecting broken links.
  • Finding duplicate content.
  • Parsing JavaScript websites.
  • Review directives.
  • Compare crawls and staging.

Amazon, Disney, Distilled, Google, and Seer are the organizations that respect the highly efficient peculiarities of Screaming Frog.


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It was created by Oleg Salamaha, who grew it into one of the most popular website SEO audit tools. Serpstat provides keyword trends and research tools, instruments for rank tracking, and competitor analysis that offer the users the following functions:

  • One-page audit.
  • Keyword clustering.
  • Custom reports.
  • Search volume crawling.
  • Batch domain analysis.

Uber, Lenovo, Philips, Adidas, Tripmydream, etc., use the tool to improve online performance.

SE Ranking

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Valery Kurilov is a founder of the SEO audit tool and an indispensable leader of the SE Ranking team. The huge range of functions and opportunities allow the users to provide the specific audit procedures:

  • Page changes monitoring.
  • Search index status.
  • Traffic analysis.
  • Grouping keywords.

Crowd, Trustpilot, Software Advice, FinancesOnline, Capterra, and others cooperate with the SE Ranking because of their particular functions with excellent performance.


14 Best SEO Audit Tools-10

A free SEO audit tool provides a comprehensive analysis and reports considering modern marketing trends. The parameters detected by SEOmator are the following:

  • Missing/similar title tags.
  • Duplicate meta descriptions.
  • Blank HREF attributes.
  • Long OpenGraph tags/descriptions.

Backlinko, Reliablesoft, Digital Olympus, Zeo, and FuelOnline are the brands that prefer SEOmator for completing their optimization tasks.


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Craig Dunham provides an intelligent Google SEO audit tool for detecting flaws simply and acquiring suggestions for highly-efficient optimization. Its technical SEO analysis is one of the most informative among other instruments due to its unique functions:

  • View of domains, site sections, and projects.
  • Data segmentation.
  • Automated SEO QA tests.
  • Spot trends and secure resources.

PayPal, Accenture, Twitch, Canva, and Deloitte are the high-trusted users of DeerCrawl tools.


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Adam Heitzman and David McElveen are the founders of a famous SEO audit tool. They implemented a straightforward automated algorithm for maximum efficiency. The parameters analyzed by SERPsim are the following:

  • Title.
  • Snippet.
  • URL.

World-famous organizations value the tool due to its easy and highly efficient usage algorithm.


14 Best SEO Audit Tools-13

Francois Goube created website SEO audit tools that help achieve particular business goals and understand the requests users regularly send to Google. The toolset includes such instruments as Crawler and Log Analyzer that help improve and strengthen essential SEO characteristics and provide the following procedures:

  • Proficient website analysis.
  • Define the impact of ranking factors.
  • Use machine-learning projects.

Lastminute.com, Vistaprint, Rakuten, Canon, and G2 are those who improved their web performance with OnCrawl.

SEO Site Checkup

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The instrument aims to help websites improve online presence, user experience, and credibility and suits web admins, business owners, and SEO specialists. Professional monitoring tools help to analyze the following metrics:

  • Loading speed.
  • Mobile usability.
  • Quantity of backlinks.

Famous brands such as Buffer, Huffpost, Groove, and others use an online SEO audit tool to reach necessary marketing goals.

To Sum Up

Overall, using SEO audit tools is essential to understand the search engine optimization flaws and determine suitable ways to correct them. Modern online brands use them to improve their online presence and relevance, rank higher in SERP, and become true leaders of organic search.

Article by:
CEO Andrew Chornyy

CEO Plerdy — expert in SEO&CRO with over 11 years of experience.

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