fastmon RUM
fastmon RUM is a web and API service for measuring store load time and web performance from real customers’ devices and networks.
What fastmon RUM is
fastmon RUM is a web and API service for measuring store load time and web performance from real customers’ devices and networks. It reports Core Web Vitals and related measures at the p75, while its analytics connect visitors, sources, campaigns, UTM attribution, geographic breakdown, and error correlation with performance data. Synthetic Monitoring is labeled beta, with Lighthouse audits every 24 hours and TTFB checks about every five minutes. Threshold or percentage-change alerts can reach email, Slack, Discord, or a webhook. The REST API includes analytics queries and endpoints for errors, visitors, Server-Timing, and releases, using Bearer tokens and an OpenAPI schema. Shopware and Shopify integrations are named, and script installation is listed for WordPress, Magento, TYPO3, Webflow, Next.js, React, and other script-tag sites. Minimal and Standard modes set no cookie, while Full mode writes an identifier requiring consent.
Good
- Real-user Core Web Vitals at p75
- Analytics include campaigns and UTM attribution
- Alerts support email, Slack, Discord, and webhooks
- REST API includes errors and release endpoints
- EU processing and German storage stated
Watch out
- No free plan
- Synthetic Monitoring remains beta
- Enterprise pricing is custom
- Full mode requires visitor consent
Who it suits
It suits shops and web teams needing real-user performance data, alerting, and integrations. Light targets small shops, while Enterprise is aimed at high-traffic teams with custom needs.
Verdict
fastmon RUM combines real-user performance measurement, web analytics, alerting, and API access. Its paid plans and beta synthetic monitoring should be considered alongside the listed privacy modes and retention terms.
Plans and prices
From fastmon RUM's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Light | €29 a month | 200,000 pageviews included · €10 per extra 200k · one prod and one dev application · €29/month; prices per month, excluding VAT |
| Standard | €99 a month | 1 million pageviews included · €50 per extra 1M · one prod and one dev application · at least 60-day full retention · 13-month statistics · €99/month; prices per month, excluding VAT |
| Enterprise | Priced on request | Custom pageview volume and retention · priority support with a named contact · guided onboarding · signed DPA and security review · Custom |
The facts
Each one read from fastmon RUM's own pages, with the date it was checked.
What it does
- Alerts
- Threshold or percentage-change alerts can be sent by email, Slack, Discord or webhook.checked 4 Oct 2026
- Analytics
- Web analytics includes visitors, sources, campaigns and UTM attribution alongside performance data.checked 4 Oct 2026
- API
- The REST API provides analytics queries and endpoints for errors, visitors, Server-Timing and releases, with Bearer-token authentication and an OpenAPI schema.checked 4 Oct 2026
- Audience
- The maker describes Light as intended for small shops seeking monitoring and Enterprise as intended for high-traffic teams with custom needs.checked 4 Oct 2026
- Core Web Vitals
- Real page loads report Core Web Vitals and related metrics evaluated at the p75.checked 4 Oct 2026
- Data handling
- The maker says IP address and User-Agent are removed at the edge before application code sees them, and location is reduced to country.checked 4 Oct 2026
- Hosting
- The maker says customer and monitoring data are processed in the EU and stored in Germany on Hetzner infrastructure, with no US provider in the data path.checked 4 Oct 2026
- Integrations
- The site names Shopware and Shopify integrations, and says the script can also be used on WordPress, Magento, TYPO3, Webflow, Next.js, React and other websites that accept a script tag.checked 4 Oct 2026
- Privacy
- In Minimal and Standard modes, fastmon says it sets no cookie and stores nothing on the visitor’s device; Full mode writes an identifier and requires consent under its stated assessment.checked 4 Oct 2026
- Purpose
- fastmon measures store load time and web performance using data from real customers’ devices and networks.checked 4 Oct 2026
- Retention limit
- The privacy page states 90 days default retention and up to 13 months on Enterprise; the plans page lists at least 60-day full retention and 13-month statistics for Standard.checked 4 Oct 2026
- Support
- Product support by email is included on every plan, while debugging and performance optimization are offered as consulting.checked 4 Oct 2026
- Synthetic monitoring
- Synthetic Monitoring is labeled beta and includes Lighthouse audits every 24 hours and TTFB checks about every five minutes.checked 4 Oct 2026
The company
- Headquarters
- Hannover, Germanychecked 28 Sep 2026
Money
- Trial
- The maker offers 30 days of full access without a credit card and says billing starts only after the user chooses a plan.checked 4 Oct 2026
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