Developer Tools
Run SEO audits, check technical issues, analyze links and keyword density, and see Semrush metrics as you browse and search.
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Tools
Real-time SEO audit tool. Analyze pages, compare with competitors, and optimize your content.
Audience & ratings
Store users
≈1M
9
Ratings
What stands out
SEOquake: On-Page SEO Checker reports the larger audience. These are store counts, including rounded estimates. A rating comparison needs a recorded score and rating count for both products.
Different categories. Category overlap does not establish that two products serve the same workflow.
Product & publisher
Publisher
Semrush Inc.
Check Page SEO
Publisher portfolio
1 listing
1 listing
Listing status
Active
Active
Manifest
Version 3
Version 3
Package size
1.93MiB
1.55MiB
Permissions & access
Requested capabilities describe access, not developer intent or a safety verdict.
API permissions
3 requested
- storage
- tabs
- webRequest
8 requested
- activeTab
- storage
- scripting
- unlimitedStorage
- offscreen
- identity
- contextMenus
- cookies
Website patterns
1 recorded
- <all_urls>
3 recorded
- <all_urls>
- https://checkpageseo.com/*
- https://html.duckduckgo.com/*
Releases
Explore the release history
Create an account to compare versions and update timing. Your plan controls history depth.
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.
How Earlygap collects evidenceReplace an extension
Your comparison
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