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About

Greenbar is a hosted uptime-monitoring service for freelancers and small web agencies that manage client websites. Users organize monitored URLs by client and check them over HTTP or HTTPS against expected response codes, with optional keyword checks to catch error pages that return a successful status. Email alerts are available on every plan; paid plans add Slack and signed-webhook alerts. Each client gets a public status page with current service states and incident history; monitor URLs remain private. Paid plans offer client logos and brand colors and allow the Greenbar footer to be hidden. Free includes one client page, five monitors and five-minute checks, with seven-day check history. Freelancer includes 10 client pages and 50 monitors; Agency includes 30 client pages, 150 monitors and up to three logins. Paid plans offer one-minute checks and 90-day check history. New accounts receive $100 in free credit, and no payment card is required to start.

About

Most uptime monitors only check if your server responds. upsonar goes further — it loads your page and discovers every external dependency: CDN-hosted files, third-party scripts, web fonts, and API endpoints. If any of them fail, you get alerted before your users notice. Availability checks run from multiple global regions simultaneously, so regional CDN failures and localized outages don't go undetected. Beyond uptime, upsonar monitors SSL certificates approaching expiration, tracks domain expiry dates to prevent renewal failures, and detects DNS record changes that could indicate unauthorized modifications. All five monitoring types work together in one dashboard. Notifications reach you through email, Telegram, or webhooks compatible with Slack, Discord, and PagerDuty. Get started free with 3 websites — all features included, no credit card needed.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Freelancers and small web agencies that look after client websites.

Audience

Developers, DevOps engineers, system administrators, SaaS companies, web agencies, freelancers, e-commerce businesses, and site reliability teams

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

No images available

Screenshots and Videos

No images available

Pricing

$0/month
Free is $0/month and includes one client status page, five monitors, five-minute checks, and seven-day check history. Freelancer is $15/month or $150/year for 10 client pages and 50 monitors. Agency is $35/month or $350/year for 30 client pages, 150 monitors, and up to three logins. Paid plans include one-minute checks and 90-day check history. Prices are in USD. New accounts receive $100 in free credit, and no payment card is required to start.
Free Version Supported
Free Trial Not Supported

Pricing

€10/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Company Information

Greenbar
usegreenbar.com

Company Information

upsonar.io
Founded: 2025
Cyprus
upsonar.io

Alternatives

Alternatives

ZnowPulse

ZnowPulse

ZnowSoft
FourSight

FourSight

TetraCore

Categories

Website Monitoring Supported

Categories

Website Monitoring Supported

Integrations

Slack Supported

Integrations

Slack Not Supported
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