Products

Calibre

Uses AIMCPSkill

Stop finding out your website is slow from customers

calibreapp.com Software Development / Monitoring & Observability

AI Benchmark
Desktop
Mobile
Monthly visits
17.2K
Down17.3%MoMOct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$75/mo
Higher than 89% of peersNiche median $15/mo
Creators
Ben Schwarz
@benschwarz· 2 followersCo-created with Karolina Szczur
Launched
12y ago
2014-04-20 · Est.

Traffic

Monthly visitsData through Oct 2026
Events10 changes

Marketing moves

Launches, search & content, referrals, promotions
X accounts@benschwarz

  • Launched on Product HuntLaunch

    Automating monitoring and improving web performance

    Apr 17, 2018 · 8y agoLaunch page

  • Launched on Show HN (57 pts · 17 comments)Launch

    Calibre Test Profiles – Test your sites under real world conditions — Hi HN! I'm Ben, the solo founder of Calibre Analytics: . Calibre monitors websites and applications in a clean-room testing environment fr…

    Mar 23, 2017 · 9y agoLaunch page

  • Launched on Product HuntLaunch

    Comprehensive web performance monitoring

    Apr 22, 2014 · 12y agoLaunch page

  • Launched on BetaListLaunch

    Calibre – Continuous website quality and performance telemetry — Continuous website quality and performance telemetry

    Apr 20, 2014 · 12y agoLaunch page

Third-party reviews & case dossiers

Acquisition breakdowns, engineer reviews & open-source metrics
Show HN
2017-03-23Source
Post excerpt:
Hi HN! I'm Ben, the solo founder of Calibre Analytics: https://calibreapp.com . Calibre monitors websites and applications in a clean-room testing environment from all over the world. Up until January Calibre has been an "inbetween other things" / evenings / holidays kind of project. (Only, oops—I did that for four years.). Last year I knuckled down to get i

MCP Server & Agent Ecosystem

GitHub · MCP / Skill

Agent, MCP & Developer Integration

MCP ServerAgent SkillCLI / SDKAPI
Ecosystem & integrations:
SlackClaude CodeCursorCodexCopilotClaude
Exposed tool capabilities:
Web Performance MonitoringReal User MonitoringChrome UX Report (CrUX)Synthetic MonitoringInsights emails
Browse all MCP Server products →

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Direct38%
  • Organic Search37%
  • Referrals11%
  • Social5%
  • Other8%

Countries

  • United States30%
  • India21%
  • United Kingdom13%
  • Pakistan7%
  • Indonesia6%

Search

Domain authority —Domain registered 2013-10-06

KeywordMonthly volume
page speed test212.3K
website speed test204.6K
website speed checker27.9K
page speed checker10.8K
hex map of earth with 240 hexes430

Traffic data: Vaneform

Pricing

Starter
$75/mo
Billed annually $900/yr
5,000 RUM sessions per month · 5,000 Synthetic tests per month · 3 seats included · Unlimited Sites and URLs · 1 Team
Team
$150/mo
Billed annually $1800/yr
10,000 RUM sessions per month · 15,000 Synthetic tests per month · 10 seats included · Unlimited Sites and URLs · Unlimited Teams
Company
$1,500/mo (billed annually)
Billed annually $18000/yr
1,000,000 RUM sessions per month · 50,000 Synthetic tests per month · 50 seats included · Unlimited Sites and Teams

Trial: Get insights in minutes with a 15-day free trial. · 3 paid tiers ($75–$1500) · Observed 2026-11-09 · Pricing page

Entry price $75/mo, Higher than 89% of peers; “Monitoring & Observability” median is $15/mo.View pricing benchmark

Pages & changes

Tracked since 2014-04-22

Key pages

Weekly snapshots

Changes

  1. Nov 1 · 13d ago

    Homepage headline (H1) changed to “Stop finding out your website is slow from customers”Positioning

    Everything your team needs to ship fast websites→Stop finding out your website is slow from customers

    At the time: 17.2K visits/mo9 concurrent moves
  2. Nov 1 · 13d ago

    Adopted technology: HSTSFeatures

    —→HSTS

    At the time: 17.2K visits/mo9 concurrent moves
  3. Nov 1 · 13d ago

    Removed technology: Next.jsFeatures

    Next.js→—

    At the time: 17.2K visits/mo9 concurrent moves
  4. Nov 1 · 13d ago

    Removed technology: ReactFeatures

    React→—

    At the time: 17.2K visits/mo9 concurrent moves
  5. Nov 1 · 13d ago

    Adopted technology: SvelteFeatures

    —→Svelte

    At the time: 17.2K visits/mo9 concurrent moves
  6. Nov 1 · 13d ago

    Adopted technology: SvelteKitFeatures

    —→SvelteKit

    At the time: 17.2K visits/mo9 concurrent moves

Questions & evidence

How much does Calibre cost?
Starter: $75/mo (annual billing available); Team: $150/mo (annual billing available); Company: $1,500/mo (billed annually) (annual billing available). Observed 2026-11-09. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does Calibre get?
Vaneform estimates 17.2K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Calibre and what platforms does it support?
Calibre is catalogued under Monitoring & Observability: Stop finding out your website is slow from customers. Supported platforms: MCP Server, CLI / SDK, API.

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