webtelemetry.dev
87,068 sites profiled today74,877 new WordPress sites this week52,001 new PHP sites this week23,610 new Next.js sites this week538 new .ai domains todaymost common kind of site in the last 24h: online shopCanada hosts the most new sites this week3,872 newly registered domains went live this week87,068 sites profiled today74,877 new WordPress sites this week52,001 new PHP sites this week23,610 new Next.js sites this week538 new .ai domains todaymost common kind of site in the last 24h: online shopCanada hosts the most new sites this week3,872 newly registered domains went live this week

calibre.app

Calibre: Web Performance Monitoring for Every Team

Calibre combines real user monitoring, Google CrUX data, and synthetic page speed tests so your team always knows where performance stands and what to fix.

Last scanned 2 h agoCompare with another site →

Built with

Frontend framework
Svelte

Also detected

Infrastructure
Amazon CloudFront · Cloudflare · Render

Overview

Status
alive
Registered
2018-05-08 (8 years ago)
through 1API
First seen here
2026-09-25
Hosting
Amazon.com, Inc. · AS16509 · France
DNS
dnsimple-edge.io
Server header
cloudflare
Response time
1157 ms to first byte, measured from our crawler
TLS certificate
Amazon · TLSv1.3 · expires 2026-12-16
Language
en
Mobile-ready
yes (viewport meta tag)
Structured data
WebSite · Organization
Popularity
ranked #447,955 of the top million (Tranco, a 30-day average of several ranking lists)
Linked to from
7 other sites seen so far

Crawlers

What this site's robots.txt asks of automated readers. See the whole picture.

robots.txt
published
AI crawlers
CCBot blockedBytespider blockedAmazonbot blockedApplebot-Extended blockedmeta-externalagent blockedDiffbot blocked
llms.txt
published

Generated automatically from passive, publicly observable data. Think something here is wrong or want this profile removed? See /bot. Machine-readable: JSON.