Developer Tools
Checks robots.txt, meta robots, x-robots-tag with URL alerts. Canonical warnings, HTTP header info. An SEO extension, robots tester.
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Developer Tools
SEO checker: Title, meta description, language, word count, sitename, robots tag, canonical, heading, image alt, all link and more.
Audience & ratings
Store users
50K
2K
Ratings
What stands out
Robots Exclusion Checker reports the larger audience. These are store counts. The rating difference is 0.13 points across 30 and 10 ratings.
Category overlap does not establish that two products serve the same workflow.
Product & publisher
Publisher
sam
seocenter.vn
Publisher portfolio
2 listings
1 listing
Listing status
Active
Active
Manifest
Version 3
Version 3
Package size
187KiB
239KiB
Permissions & access
Requested capabilities describe access, not developer intent or a safety verdict.
API permissions
1 requested
- storage
11 requested
- activeTab
- contextMenus
- storage
- downloads
- offscreen
- scripting
- webRequest
- webNavigation
- tabs
- sidePanel
- declarativeNetRequest
Website patterns
1 recorded
- https://www.checkrobots.com/*
1 recorded
- <all_urls>
Releases
Explore the release history
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Create your free accountEvidence behind this comparison
Both listings observed 2 Oct 2026.
Store users and ratings are observations, not revenue or lifetime installs. A larger audience or a higher score does not establish product quality.
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Your comparison
2 of 2 selected
Robots Exclusion CheckerDeveloper Tools
SEO CENTER ExtensionDeveloper Tools