Upsonar - Website Monitor icon

Upsonar - Website Monitor

Extension Actions

How to install Open in Chrome Web Store
CRX ID
dghhhepcapjmcdljcdkgabdlgefklbbh
Description from extension meta

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

Image from store
Upsonar - Website Monitor
Description from store

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)

Latest reviews

Richard Maxwell
Exactly what I was looking for.
Ken Great
Kudos to the developer of this tool.
John Wilson
Working beyond my expectations.
Kenneth Williams
So effective.
Ayo Mhide
Nice. it's working.
Mbape Goods
thumbs up!!
Rodrigo
This is must use tool for every web developer!!
Williams Max
I felt tired of some bugs at first but in the end I found what I was looking for.
Vicky Denilson
I'm excited for finding this wonderful extension!!
Brain Traisy
So satisfied with this tool.
Evans Anthony
At first this tool was a headache but when I took time to find my way around it, I enjoyed the effectiveness so well!!
Doris Davis
This extension has been helpful in my work recently.
Banky T
So easy to use
Adekunle Peter
This tool is user friendly.
Patrick John
Love it.
Rex John
Amazing extension.
MARKETING TØYÎB
This is a recommendation for web development!
The pro Samik
It meet with my expectations.
Apex Team
Nice tool, Loving it.
Daria Petrova
Excellent! It's working!