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On-Page SEO Checker

On-page SEO means working with all the content on the website page: text, images, HTML markup. In other words, on-page SEO is a series of techniques and practices aimed at optimizing the internal content of web pages to achieve better search engine ranking results. The ultimate goal of internal optimization is to get more traffic to your website. But what exactly does the process of “optimizing” page content involve?

Most of the existing guides and tutorials on on-page SEO provide for using only one technique – placing accurate keywords in different page elements – in the title, meta description, in H1/H2/H3, etc. Unfortunately, such advice is extremely outdated and of little use. Most search engines (including Google) are “smart” enough to recognize synonyms and semantically relevant keywords, which means only one thing: you’re not tasked with placing the same keys everywhere on all elements of a web page.

Don’t want to optimize web pages like it’s still 1999? Then use SEO checkers below to correct on-page SEO optimization and rank the website in search results higher.

10 Best On Page SEO Checker


It is a tool that allows marketers, SEO specialists, and business owners to stay up-to-date on all changes in the SEO settings of a website. SEO checker from Plerdy analyzes the website and sorts pages according to three parameters: no errors on the page, there are errors on the page, pages that should be paid attention to. SEO checker separately shows settings for mobile gadgets and desktop or laptop computers. SEO checker also allows you to analyze the semantic core of each page and generates a visual report. Analysis of semantics is performed in the same way for the two versions of the website. There is even a special Chrome plugin for quick on-page reviews. Annex Tour, Kredo Bank, MOYO, Template Monster, and Neatpeak already use SEO-checker from Plerdy.

Google Search Console

It is a specialized service for web admins from the Google search engine that allows you to monitor how a site is represented in its results and to receive information about the need to optimize it. In particular, Google Search Console provides information on the number of pages indexed and displayed in searches, the presence of irregularities on the site, which may be a reason for lowering its position, and the main queries for which the site’s pages are displayed in search results. Also, on the panel for web admins are presented tools to determine the website sitemap.xml and robots.txt and check their content.


It allows you to conduct a rapid analysis of the website, make the right conclusions and quickly adjust the work to optimize the website, if necessary. The information provided will allow you to: detect and eliminate technical errors, evaluate the effectiveness of a solution, compare the results of changes made, track website visibility and user reactions, and analyze the work of search bots. The headquarter is based in Amsterdam (Netherlands).

Ahrefs’ Keyword Explorer

Placing keywords in your content helps the search algorithm determine what your content is about. Using this SEO checker, you can search for keywords to find your main keyword and build content around it. So, this SEO tool will help you pick keywords by providing information about their search volume and difficulty. The office is located in Singapore. Dmitry Gerasimenko founded this SEO software. Among its customers are Facebook, Adobe, LinkedIn, Netflix, Uber.

Screaming Frog SEO Spider

This is a program that needs to be installed on your computer. It analyzes websites using the user’s server. Depending on your preference, you can choose between the limited free version, which allows you to analyze up to 500 pages of the website, or the full paid version. It is a very convenient, clear, and useful tool for website audit and optimization, which is definitely worth the attention of SEO specialists and owners of any website. Much important information presented in an easy-to-understand format and a simple interface makes the program a great solution for experienced and beginner SEO specialists. Dan Sharp and Graeme Radford are co-founders of this SEO tool. Its office is located in Henley-on-Thames, United Kingdom. Amazon, Disney, Apple, Distilled, and Seer already use it.


This is an SEO and marketing checker that studies websites to find weaknesses in them. It gives a detailed report on competitors’ weaknesses. In addition, the service creates marketing checklists for technical and content issues, indicating the company’s vulnerabilities on the website and ways to improve them. The development team’s office is in Brussel, Belgium. Nils De Moor founded this SEO checker in 2011. MarketScale, MAKESafe Tools, Yummy Plants, Kaspien, and New Standard Solutions have achieved great results thanks to this SEO checker.


It is an advanced SEO checker. Using IBM Watson technology, this service helps you find the topics that ranking websites use. This allows you to compare yourself with your competitors and their content. Since the foundation by Bernard Huang, it has helped thousands of companies, for example, NVIDIA, Binance, YouTube, INTUIT, and CONDE NAST.


This SEO checker defines itself as a SERP analyzer and content editor. Its advantage is that it analyzes more than 500 data points for the keyword you want to create content and combines them into one interface, so you don’t have to collect data manually. Michał Suski is the co-founder of this SEO checker. The office is located in Wrocław, Poland. Among its clients are ClickUp, Opera, Depositphotos, Spectrum, and GetResponse.

PageOptimizer Pro

It is a powerful on-page SEO checker that helps you optimize pages for better ranking and visibility in page search engine results. It compares and analyzes the most popular competitor pages for that keyword and then provides you with useful and actionable data that you can use to optimize your page and boost your search engine rankings. The founder of this SEO checker is Kyle Roof and the office is located in Hampton (Victoria). Hubspot, Survey Monkey, Springer, Thomson Reuters, and FreshBooks already use this tool for on-page optimization.

Moz On-Page Grader

This is an easy-to-use SEO checker that will help you provide good content, provide a wide selection of keywords, and tell you how to assign an appropriate title to each page. It was founded by Rand Fishkin in 2004. It has two offices in Seattle (USA) and Vancouver (Canada). Among its clients are Go Fish, Chesapeake Regional Health, Tinuiti, Coalmarch, and Wpromote.


On-page SEO is not just placing keywords in meta tags. Internal optimization of web pages is about creating the perfect page for both the user and the search engine. And to make your web pages even more attractive for search engines, use an SEO checker for finding problems.

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