Upsonar - Website Monitor

Check website availability, SSL certificates & domain expiry across 9 global locations. Fast, privacy-focused monitoring.

As of June 2026, Upsonar - Website Monitor has 31 users and a 5.00/5 rating from 7 reviews in the Developer Tools category.

Usersup 63.2 percent+63.2%
31
31
Ratingno change0%
5.00
7 reviews
Reviewsno change0%
7
Version
1.7.0
Manifest V3

History

7 snapshots

Tracking since Apr 1, 2026.

31.962518.04Apr 1, 2026Jun 4, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026195.0071.7.0
Apr 19, 2026225.0071.7.0
Apr 29, 2026215.0071.7.0
May 8, 2026195.0071.7.0
May 16, 2026205.0071.7.0
May 25, 2026225.0071.7.0
Jun 4, 2026265.0071.7.0
Now315.0071.7.0

Permissions & access

Permissions
tabsstorage
Host access
https://upsonar.io/*

Screenshots

Upsonar - Website Monitor screenshot 1Upsonar - Website Monitor screenshot 2Upsonar - Website Monitor screenshot 3Upsonar - Website Monitor screenshot 4Upsonar - Website Monitor screenshot 5

About

Upsonar - Website Monitor

Check website availability, SSL certificates, and domain expiry across 9 global locations. Essential for web developers, site owners, and IT professionals ensuring worldwide accessibility and security.

Key Features:
• HTTP availability checks from 9 geographically diverse points
• External dependency analysis - detect broken CDNs, scripts, fonts
• SSL certificate monitoring - check expiry dates and validity
• Domain WHOIS lookup - monitor domain expiration
• Real response time measurements in milliseconds
• Clean, modern interface with expandable details
• One-click check for your current tab
• Remembers your preferred regions and check type
• Privacy-focused: No personal data stored

Three Check Types:
1. HTTP Check - Verify website and its external dependencies (CDNs, scripts, stylesheets) across multiple regions
2. SSL Check - Monitor SSL certificate expiry, issuer, security score, and cipher suites
3. Domain Check - Track domain registration expiry, registrar, and nameservers

Why Choose Upsonar?
✓ True global perspective - check from 9 worldwide locations
✓ Dependency monitoring - catch issues when third-party CDNs or scripts fail
✓ Never miss SSL certificate renewal deadlines
✓ Stay ahead of domain expiration issues
✓ Identify region-specific problems quickly
✓ Privacy-first: All checks are real-time, nothing stored

How It Works:
1. Enter your website URL or use the current tab
2. Choose check type: HTTP, SSL, or Domain
3. For HTTP checks, select up to 9 worldwide regions
4. Click "Check" and get instant results
5. Expand any result for detailed information

Privacy & Security:
• No personal data stored
• Checks performed from 9 diverse geographical points
• All data processed in real-time, not saved after your session

Want 24/7 monitoring with alerts? Visit upsonar.io - free tier available!

Powered by Upsonar (upsonar.io)

Technical

Version
1.7.0
Manifest
V3
Size
17.94KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
dghhhepcapjmcdljcdkgabdlgefklbbh
Developer ID
u7cab30649e6591c689ae3cc6e984f63a
Developer Email
[email protected]
Created
Aug 5, 2024
Last Updated (Store)
Dec 9, 2025
Last Scraped
Jun 4, 2026
Website
upsonar.io
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 4, 2026.