On-Page SEO Checker

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Most people believe that on-page SEO is about adding as many keywords to the text as possible. When the website page doesn’t rank as expected, they start looking for mistakes on the entire website and fail.

Modern marketers should know that on-page SEO is not only about keyword stuffing. It’s about the quality of the content, correct metadata, tags, and other details. Therefore, if you want to get to Google’s top, you will need SEO optimization of every page.

Fortunately, on-page SEO checkers can automate page-by-page analysis and instantly show what to fix. They highlight specific problems and areas for improvement by page.

Learn more about how on-page SEO checkers work below.

What is On-Page SEO?

On-page SEO (also called “on-site”) is a search optimization approach focused on improving every web page’s content and SEO metrics. It enhances user experience and the ranking of the optimized pages in search engines.

This method is essential to show search algorithms that the content on the web page matches the search query. Search engines automatically evaluate pages before ranking them to display the most relevant content and give users what they are looking for. The main signal of relevancy is when the page includes the same keywords as the search query. If they appear in the headers and content several times, it’s a good sign. Metadata descriptions with keywords also show the algorithms that the analyzed content will meet the expectations of users.

Given the requirements of search engines, on-page optimization involves these areas:

  • Content must be unique, keyword-targeted, and crawlable
  • Metadata must be added to every page and follow the character limit and other standards
  • Page must include links and be linkable itself

Even though marketers can measure on-page SEO manually, it would be too time-consuming. That’s why professionals prefer automated on-page SEO checkers like Plerdy.

Automatic On-Page SEO Checker

On-Page SEO Checker is one of the marketing tools supported by Plerdy. You can add its script to your website pages to monitor critical SEO changes. This SEO analyzer automatically records mistakes on the related pages every day. The best thing about On-Page SEO Checker is that you can obtain data on each page separately. Besides, it monitors only the pages that have traffic, which speeds up the analysis.

Plerdy highlights the pages with critical mistakes to save your time and allow you to remove them immediately. It also supports the WAS/NOW features to show what SEO errors have been fixed and persist.

This On-Site SEO Checker is particularly effective for SEO specialists, usability experts, data analysts, and marketers. They can integrate it with Google Search Console for more data-driven recommendations on how to increase website traffic.

On-Page SEO Checker Chrome Extension by Plerdy

Website SEO Checker is an extension designed to enable users to run quick SEO analysis in Chrome. After adding the checker to the web browser, you can scan the opened page’s SEO content quality and metadata. It helps to figure out why this page cannot reach top results in Google and enhance its ranking through troubleshooting.

Website SEO Checker is perfect when you don’t have time for a comprehensive analysis. It’s also an effective alternative for small businesses that cannot afford expensive SEO software.

Example of On-Page SEO Checker Use for TemplateMonster

Our team analyzed Template Monster’s website using Plerdy and detected almost 2,500 pages with errors.

We segmented the problematic URLs using filters to analyze mobile pages first. It’s important to start from the mobile version since the mobile-first approach has tremendous rankings. Afterward, we filtered the mobile pages by mistake type. The number of H1 titles, Descriptions, and H1 Content were the main categories of mistakes. Thanks to segmentation, it was easy to view SEO analysis reports for each page and troubleshoot. The report includes title, Description, H1 content, headers, and other tags that affect on-page SEO.

The Plerdy team repeated the same steps for the Pay-Attention pages and the desktop version of TemplateMonster. We also analyzed the content using the Word analysis feature. It allowed us to learn top words, stop words, spam score, average sentence length, and readability on each page. This data was necessary to enhance the SEO indicators of content quality.

For more detailed comments and recommendations, visit the case study page.


Website optimization is a continuous process. You will need to regularly measure key indicators to make sure new and existing pages follow the latest Google ranking requirements. On-page SEO checker provided by Plerdy automates this process and boasts other significant benefits. It doesn’t overload your server, collects valuable statistics, and provides professional SEO tips that are easy to follow.

Article by:
CEO Andrew Chornyy

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

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