Side by side
Perfmatters vs Uptime Cairn
Both stand on website monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid Self-hosted
Perfmatters provides detailed WordPress performance controls across scripts, databases, media, and CSS. Review the yearly renewal terms and the absence of monitoring features alongside the optimisation toolkit.
Visit Perfmatters Free plan APILinuxSelf-hosted+1
Uptime Cairn offers broad monitoring, alerting, reporting, and status-page features in a self-hosted package. Its lack of a hosted tier and the listed unshipped features matter if you need those capabilities.
Visit Uptime CairnThe facts
| Perfmatters | Uptime Cairn | |
|---|---|---|
| Free plan | No | Yes |
| Open source | Not published | Not published |
| Runs on | Self-hosted | API, Linux, Self-hosted, Web |
| Lowest paid plan | 1 Site – Personal: $29.95 a year | Free or on request |
| Plans published | 3 | 1 |
| Maker | Not published | Not published |
| Website | perfmatters.io | uptimecairn.dev |
| On website monitoring software | #51 of 55 | #18 of 55 |
Perfmatters: what it does well
- Per-page and device script controls
- Scheduled database cleanup
- Lazy loads multiple media types
- Supports WebP and AVIF
- Includes developer support and documentation
What to know first
- Paid self-hosted WordPress plugin
- Licenses renew yearly
- Auto-renew is enabled by default
- No SSL or latency monitoring
Uptime Cairn: what it does well
- Supports a wide range of network and service checks.
- Status pages allow custom domains and branding.
- Provides a REST API and scheduled reports.
- No features are held back for a paid tier.
What to know first
- There is no hosted tier.
- Multi-region probing, SSO, and synthetic browser flows have not shipped.
- The site recommends a reverse proxy before internet exposure.
Alternatives to Perfmatters Alternatives to Uptime Cairn The whole list