Side by side

ArxEyes vs Perfmatters

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.

ArxEyes

Free plan Web

ArxEyes brings regional checks, alert controls, and public status pages together, with a free tier and paid plans from $9 per month. Its terms make clear that results and notifications are not guaranteed to arrive without interruption or delay.

Visit ArxEyes

Perfmatters

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

The facts

	ArxEyes	Perfmatters
Free plan	Yes	No
Open source	Not published	Not published
Runs on	Web	Self-hosted
Lowest paid plan	Solo: $9 a month	1 Site – Personal: $29.95 a year
Plans published	4	3
Maker	Not published	Not published
Website	arxeyes.com	perfmatters.io
On website monitoring software	#7 of 55	#51 of 55

ArxEyes: what it does well

Checks cover HTTP(S), DNS, SSL expiry, TCP, and other types.
Alerts support six listed channels, including webhooks and ntfy.
Status pages show incidents, uptime history, and live component status.
Free plan includes one status page and one-month history.
Maintenance windows can suppress notifications.

What to know first

Free plan is limited to three monitors and one probe region.
Free checks run every five minutes.
Monitoring and notifications are not guaranteed to be uninterrupted, instantaneous, or error-free.

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

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