fastmon RUM
fastmon RUM: RUM, web analytics and synthetic checks in a focused web monitoring service. Ranked #22 of 27 in Real User Monitoring by our editors (7.1/10); pricing: 30-day trial; best for web teams needing RUM plus synthetic checks.
At a glance
- Editor score7.1 / 10
- Pricing30-day trial
- Best forWeb teams needing RUM plus synthetic checks
- Free planNo
- Paid from€29/mo
- Core Web VitalsYes
- Facts checked20 Sep 2026
Where it wins
- Tracks Core Web Vitals, errors, waterfalls and Server-Timing
- Adds synthetic Lighthouse and TTFB checks alongside RUM
- Supports segmentation, release markers, alerts and REST API access
Where it doesn't
- Covers web and API platforms rather than broader application stacks
- No free plan; Light starts at €29 per month
- Enterprise features require a custom plan
Our verdict on fastmon RUM
fastmon RUM monitors website performance from real visitors’ browsers. It combines Core Web Vitals for LCP, INP and CLS with JavaScript error tracking, network timing, page-load diagnostics and web analytics. Website teams, developers and small businesses can use geographic, device and network segmentation to examine performance differences across audiences. The service is hosted in Germany and connects through a single deferred JavaScript snippet, with REST API access for teams that need programmatic data.
Pricing is structured around monthly pageview-based plans. Light costs €29 per month and includes 200,000 pageviews, Core Web Vitals monitoring, real-user monitoring, web analytics, alerts through email, Slack, Discord and webhooks, plus one production and one development application. Standard costs €99 per month and adds JavaScript error grouping, network waterfalls, Server-Timing, Synthetic Monitoring, fastmon AI, at least 60-day full retention and 13-month statistics. Enterprise provides custom pageview volume and retention windows, priority support with a named contact, guided onboarding, a signed DPA and a security review. A 30-day free trial is available, and prices exclude VAT.
The standout value is the combination of field data and scheduled checks in one focused service. Teams can track regressions with threshold alerts, annotate deployments through CI/CD release markers, and schedule Lighthouse and TTFB synthetic checks. Integrations include GitHub Actions, GitLab and Vercel, while Slack, Discord and webhooks support notification workflows. fastmon RUM suits web teams that want performance diagnostics, analytics and synthetic coverage without expanding into a wider application-observability platform. Teams monitoring native mobile apps or broader infrastructure should choose a product designed for those environments instead.
Your product? Our editors can test fastmon RUM in depth and publish a review, labelled as paid · from $149/mo →
fastmon RUM pricing
All 3 fastmon RUM plans and prices →
fastmon RUM fact sheet
| Free plan | No |
|---|---|
| Paid from | €29/mo |
| Core Web Vitals | Yes |
| Mobile app monitoring | Not verified |
| Interaction tracking | Yes |
| Geographic breakdown | Yes |
| Error correlation | Yes |
| Data retention | 90+ days |
| Pricing metric | Pageviews |
| Free trial | 30 days · no card needed |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | GDPR |
| Support | Email, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 6 integrations: Slack, Discord, webhooks, GitHub Actions, GitLab, Vercel |
| Pricing | 30-day trial (source) |
| Website | fastmon.eu |
| Facts checked | 20 Sep 2026 |
fastmon RUM integrations
fastmon RUM lists 6 integrations on its own site.
- Slack
- Discord
- webhooks
- GitHub Actions
- GitLab
- Vercel
Alternatives to fastmon RUM
- Dynatrace Real User MonitoringA broad enterprise RUM suite with deep journey, mobile, replay, and error analysis.9.3
- New Relic Browser MonitoringA broad web RUM service with a useful free plan and platform-wide pricing.9.1
- Splunk Real User MonitoringA paid RUM service for teams connecting web and mobile experience data to Splunk APM.9.0
See all fastmon RUM alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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