The Complete On-Page SEO Checklist 2021

by | 27 Jun 2022 | Information, Sales & Marketing

On-page SEO is essential to rank your website higher in organic search results. It optimizes the content to improve the website rank in search queries. Since you have full control over your on-page SEO process, you can use it to influence the performance of your web pages. Here is the complete list of On-page SEO factors necessary for increasing the visibility of your website.

Ensure Your Title Tag Has Your Keyword

Ensure your targeted keyword is in your title tag or extremely near to it. The title tag is an important on-page factor and the keyword in it or close to it gives it weightage with the search engines. Also, the title tag should be between 50 to 60 characters so that it is not pruned in the search results.

Importance of Modifiers to Your Title 

Attaching modifiers to the title improve your rankings. Some examples are “best”, “fast”, “simple”, “easy”, and “quick”. For relaunched blog posts include “updated”, “the best” and the “current year” i.e., 2021 or 2022. These modifiers also help with increasing your CTR (click-through rate).

Use of SEO Friendly URLs

The use of SEO-friendly URLs is an important on-page SEO factor. Web page URLs should be short and include the target keyword, preferably at the beginning of the URL. Short URLs rank better than long ones in the search results.

Use of Images

Don’t forget to include images on every page of the site. Images, videos, and other interactive content increase user engagement and thus increase time spent on your site. This reduces bounce rates. Images also provide space and a break between two sets of contents. You can also include the target keyword in the image’s alt tag property and the description of the image in the file name. If possible, use original images instead of stock images as they also help your website rise higher in organic search results.

Use of Appropriate Size Images

Resize images appropriately to allow for improved page load speed. Quick page load speeds have a positive effect on search rankings. You can use Google’s Lighthouse tool to determine oversized images that are affecting your page load speeds. Have them resized for a faster page load speed.

Use of Keyword at the Beginning of the Content

This is an important point of the on-page SEO checklist. Use the target keyword within the first 100 words of the content to rank higher in organic search results.

Use LSI Keywords 

Use LSI (Latent Semantic Indexing) keywords in your content. LSI keywords are words that are related to the target keyword. This helps the search engine algorithms to under your content better and thus rank it higher.

Use of Outbound Links

Embed some outbound quality links in your content. This way you associate your website with other high-quality outside content and showcase your website as a hub to quality and relevant information. Search engines understand what your web page is all about and thus your page ranking improves.

Use of Internal Links 

Internal links are also necessary on-page SEO factors. It helps search engines find, understand, and index the pages of your website. Use 2 to 3 links on each content you publish. Use the relevant keyword in the anchor text that helps the viewers and search engines understand the page it is directing them to.

Optimize Your Long-form Content

Articles and blog posts on your website should have a minimum of 800 to more than 1200 word content. This helps to include target keywords, longtail keywords, and backlinks in your content that will help your website rank higher in organic search results.

Eliminate Spelling & Grammatical Errors

Having spelling and typographical errors in your content will make it difficult for viewers and search engines alike to understand it. It is a major on-page SEO factor that should never be overlooked. Having these errors may lead to lower rankings in search results. To maintain and improve the rankings, use a grammar correction tool before publishing the content.

Ensure Your Site has HTTPS protocol 

HTTPS or Hypertext Transfer Protocol Secure uses encryption protocols to transfer data between a server and a web browser. It is used as a ranking signal by search engines that determine your site is safe to access. HTTPS websites rank higher on organic search results.

Optimized Meta Descriptions

Optimized meta descriptions are an essential part of any on-page SEO checklist. A unique meta description with the target keyword and not more than 150-155 characters works as a beacon for a user searching with those same keywords. It entices them to click on your webpage. This helps increase CTR (Click-through rates).

Ensure Your Web Page is Indexed 

Ensure that you do not restrict search engines from accessing content on your websites by applying a no-index tag on your web pages. The search engines cannot crawl through your web pages resulting in their no-show in the search results. You can also submit your newly published URLs for indexing and whenever you have updated and made changes to your content.

Mobile-Friendly Website 

Optimize your website for mobile devices as they have emerged as the essential on-page SEO factors today. Search engines have shifted from using the desktop version of website content for indexing and ranking to the mobile version now. Search engines rank mobile-friendly web pages higher in search results. It is important that your website loads quickly on mobile devices. You can use Google’s mobile-friendly testing tool to find and rectify mistakes and make your website mobile-friendly.

Optimize Your Website for Voice Search

Voice searches are increasingly becoming popular. Optimize your content for voice search by putting a FAQ section on your webpage related to the keyword topic. Provide short answers to these questions containing the target keywords. The answers should not be more than 30-35 words long.

Remove Broken Links and Eliminate Keyword Cannibalization

Removing broken links should be necessarily in your on-page SEO checklist. Search engines rank web pages lower if they have broken external broken links. Check your website regularly for these issues and remove or replace the links with the relevant content sources. Also, look out for keyword cannibalization issues. It means that a target keyword is used multiple times on different web pages of your website. Search engines get confused as a result and cannot decide which page to provide for a related search query. Scan your website for this issue and if you find the same keyword on multiple pages then you can merge them together and post in the webpage that has the most authority.

Review and Update Your Content 

Your content should be updated, accurate, and contain relevant information. Review, refresh, improve and update your content at periodic intervals. Updated and relevant content will help your web pages get higher rankings in organic search queries.

Avoid too many Intrusive Interstitials

Intrusive interstitials are those irksome popups that cover the content as soon a visitor lands on the page. This mars the user experience and lowers your search rankings. Legally required pop-ups like cookie policies and age verification are exceptions to this.


So, this is our on-page SEO checklist for 2021. Use the tips provided in the list to optimize your website and rank higher in organic search results.

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