Accessibility
Stable signalUnknownMedium-risk permissions
CogniShield icon

CogniShield

Protect your eyes and brain while watching videos — blue light filter, flash guard, and volume limiter for YouTube.

Users0Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate--Relative weekly velocity
Preview

CogniShield Media preview

2 assets
Trend

30-day user trend

Review user movement over the last 30 days.

User Growth Over Time

000002026年6月23日2026年6月26日2026年6月26日Latest: 0
Rating trend

30-day rating change

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

Not enough rating snapshots yet. More data will appear as new snapshots are collected.
Growth overview

Daily, weekly, and monthly growth

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

1-day growthNo data
----
7-day growthFlat
0--
30-day growthFlat
0--
Technical snapshot

Version, languages, and crawl freshness

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

Version1.0.0
ManifestV3
Size64.85KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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

CogniShield is a lightweight Chrome extension that silently protects you and your family while watching YouTube videos. It applies three real-time protections directly to the video — no content blocking, no data collection, and no interruptions.

BLUE LIGHT FILTER

Shifts the video color temperature toward warmer tones to reduce blue light exposure. Blue light (400-490 nm) is known to suppress melatonin and contribute to eye strain, especially in children whose eyes transmit more short-wavelength light. Adjust the intensity from subtle warmth to a deep amber tone.

FLASH & FLICKER GUARD

Continuously analyzes video frames for rapid brightness changes that could be harmful to photosensitive viewers. When flashing content is detected, CogniShield automatically dims the video to a safe level. The detection algorithm follows WCAG 2.3.1 guidelines and triggers conservatively — well below the threshold known to cause photosensitive reactions.

VOLUME LIMITER

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Reviews with text0Synced review bodies
Total reviews0Chrome Web Store public rating/review count
5★
0
4★
0
3★
0
2★
0
1★
0
No synced review text is available yet.
Related products

Similar and related extensions

Review related products from the Chrome Web Store detail page.