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HeaderCheck icon

HeaderCheck

Local security header audit. Runs offline. Made by YvonLabs.

Users52Current public install base
Rating5.0Store average score
Reviews6Public review volume
Manifest versionV3Extension platform version
7-day growth--Net users gained this week
7-day growth rate--Relative weekly velocity
Preview

HeaderCheck Media preview

4 assets
Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

52525252522026年6月27日2026年6月27日2026年6月27日Latest: 52
Rating trend

30-day rating change

Track rating movement over time to see whether quality signals remain stable.

30-day rating change

Start
5.00
Latest
5.00
30-day rating change
--
4.904.955.005.055.102026年6月27日2026年6月27日2026年6月27日Latest: 5.00
2026年6月27日2026年6月27日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthNo data
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7-day growthNo data
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30-day growthGrowing
+11+26.8%
Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version0.3.0
ManifestV3
Size150KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

Review the store description, core capabilities, and common use cases.

HeaderCheck is a lightweight, privacy-respecting Chrome extension that analyzes HTTP response headers for the active tab and evaluates a site's security and privacy posture.

It uses a deterministic weighted scoring model (SCM-2025.1) to calculate a 0–100 score based on the presence and validity of key security headers, including CSP, HSTS, COOP, COEP, CORP, Referrer-Policy, Permissions-Policy, X-Frame-Options, and X-Content-Type-Options.

• Instant analysis

• No remote calls or telemetry

• Graded vs informational headers for clarity

• Clean, minimal interface

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

The Chrome Web Store shows 6 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★
0
4★
0
3★
0
2★
0
1★
0
Related products

Similar and related extensions

Review related products from the Chrome Web Store detail page.