SEO Content Checker: Plagiarism & Readability

Easy-to-use SEO content checker, that helps to check text for plagiarism, readability, relevance, keyword stuffing.

As of May 2026, SEO Content Checker: Plagiarism & Readability has 9,000 users and a 3.36/5 rating from 11 reviews in the Developer Tools category.

Usersno change0%
9.0K
9,000
Ratingno change0%
3.36
11 reviews
Reviewsno change0%
11
Version
1.5.5.1
Manifest V3

History

1 snapshots

Tracking since Apr 29, 2026.

9.1K9.0K8.9KApr 29, 2026May 26, 2026
View as table
DateUsersRatingReviewsVersion
Apr 29, 20269.0K3.36111.5.5.1
Now9.0K3.36111.5.5.1

Permissions & access

Permissions
activeTab
Host access
None declared

Screenshots

SEO Content Checker: Plagiarism & Readability screenshot 1SEO Content Checker: Plagiarism & Readability screenshot 2SEO Content Checker: Plagiarism & Readability screenshot 3

About

Easy-to-use SEO content checker, that helps to check text for plagiarism, readability, relevance, keyword stuffing.

1. Find duplicate content and plagiarism sources. Click on any source to highlight parts of the text which are duplicate. Immediately rewrite these parts if you need it.

2. Identify redundant phrases. Redundant phrases are useless filters that do not add any value to the text. Click on the collected phrases on the right to highlight them and rewrite or delete this words.

3. Detect keyword stuffing. Find the words that make your text spammy and stop words. Get suggestions how many times it is better to use each word in the text to avoid spam. 

4. Check for what phrases your text is relevant. Relevant words are phrases by which your text can rank in SERP with high probability. Note that it is a forecast. There are a lot of ranking factors, except content factors. 

5. Check how easy it is to read your content. Сontent readability can influence on bounce rate of the page, its conversion rate and finally position in SERP. Detect and fix problems with readability to help users find solutions they need faster and easier.

6. Find how to structure your sentences in a better way. It's better to alternate long and short sentences to make the content easy-to-read. Detect parts in the text without such rotation and fix it.

7. Check text for keywords. Most likely, you create a text that should be ranked by specific keywords. And it's important to check how good your content is optimized for such purpose. Paste or enter a list of keywords in the right table and you will get a report that will help to proof it.

Technical

Version
1.5.5.1
Manifest
V3
Size
14.01KiB
Min Chrome
88
Languages
10
Featured
Yes

Metadata

ID
jhngfghbfdjfdfejdjlgpmaeeegckldm
Developer ID
ub57508aa1e85a3a2b702662a8ac35598
Developer Email
[email protected]
Created
Sep 20, 2018
Last Updated (Store)
Feb 23, 2024
Last Scraped
May 26, 2026

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Data sourced from the Chrome Web Store · last verified May 26, 2026.