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fastmon RUM
What fastmon RUM is
fastmon RUM is a web and API service for measuring store load time and website performance from real customers’ devices and networks. Its real-user reports include Core Web Vitals and related measures evaluated at the p75, together with visitors, traffic sources, campaigns, UTM attribution, geographic breakdown and error correlation. A beta Synthetic Monitoring feature runs Lighthouse audits every 24 hours and checks time to first byte about every five minutes. Alerts can use thresholds or percentage changes and be delivered by email, Slack, Discord or webhook. The REST API covers analytics queries plus errors, visitors, Server-Timing and releases, using Bearer-token authentication and an OpenAPI schema. Integrations are named for Shopware and Shopify, while a script can be added to WordPress, Magento, TYPO3, Webflow, Next.js, React and other compatible sites. Minimal and Standard modes set no cookie, and the maker says IP and User-Agent data are removed at the edge. Plans start at €29/mo, with a 30-day trial and no free plan.
Who it suits
It suits shops and website teams that need real-user performance data, analytics attribution and alerting. Light is described for small shops, while Enterprise targets high-traffic teams with custom needs.
What it does well
- Core Web Vitals reported at p75
- Alerts via email, Slack, Discord or webhook
- REST API with OpenAPI schema
- Shopware and Shopify integrations
- 30-day trial without a credit card
What to know first
- No free plan
- Synthetic Monitoring is still beta
- Light includes 200,000 pageviews
- Enterprise pricing is custom
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Light | €29/month; prices per month, excluding VAT · 200,000 pageviews included · €10 per extra 200k · one prod and one dev application | €29 a month |
| Standard | €99/month; prices per month, excluding VAT · 1 million pageviews included · €50 per extra 1M · one prod and one dev application · at least 60-day full retention · 13-month statistics | €99 a month |
| Enterprise | Custom · Custom pageview volume and retention · priority support with a named contact · guided onboarding · signed DPA and security review | On request |
As fastmon.eu lists them, read 4 Oct 2026. The maker's own page has the final word.
Verdict
fastmon RUM combines real-user performance measurements with traffic analytics, alerting and API access. Its EU processing and stated privacy modes may suit organizations with specific data-handling requirements, while plan limits and the beta synthetic feature need consideration.
Facts from fastmon RUM's own pages
- Alerts
- Threshold or percentage-change alerts can be sent by email, Slack, Discord or webhook. · fastmon.eu, 4 Oct 2026
- Analytics
- Web analytics includes visitors, sources, campaigns and UTM attribution alongside performance data. · fastmon.eu, 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. · fastmon.eu, 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. · fastmon.eu, 4 Oct 2026
- Core Web Vitals
- Real page loads report Core Web Vitals and related metrics evaluated at the p75. · fastmon.eu, 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. · fastmon.eu, 4 Oct 2026
- Headquarters
- Hannover, Germany · fastmon.eu, 28 Sept 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. · fastmon.eu, 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. · fastmon.eu, 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. · fastmon.eu, 4 Oct 2026
- Purpose
- fastmon measures store load time and web performance using data from real customers’ devices and networks. · fastmon.eu, 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. · fastmon.eu, 4 Oct 2026
- Support
- Product support by email is included on every plan, while debugging and performance optimization are offered as consulting. · fastmon.eu, 4 Oct 2026
- Synthetic monitoring
- Synthetic Monitoring is labeled beta and includes Lighthouse audits every 24 hours and TTFB checks about every five minutes. · fastmon.eu, 4 Oct 2026
- Trial
- The maker offers 30 days of full access without a credit card and says billing starts only after the user chooses a plan. · fastmon.eu, 4 Oct 2026
Where fastmon RUM stands on Freedom251
- Real User Monitoring#18 of 29