What powers librepcb.org?

Last seen Oct 2026 · 15 technologies across 11 categories

CDN

cdnjs
since Aug 2022
Cloudflare
since Aug 2022
jsDelivr
since Nov 2023

Documentation

Asciidoctor v2.0.17
since Aug 2022

Ecommerce

Cart Functionality
since Nov 2022

Font scripts

Bootstrap Icons v1.9.1
since Nov 2023
Font Awesome v4.7.0
since Aug 2022

JavaScript libraries

Highlight.js
since Nov 2022

Miscellaneous

HTTP/3
since Mar 2023
Open Graph
since Nov 2022

Programming languages

Ruby
since Aug 2022

Security

HSTS
since Sep 2022

UI frameworks

Bootstrap
since Feb 2021

Video players

YouTube
since Nov 2023

Widgets

Patreon
since Aug 2022

AI Crawlers

Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.

  • robots.txt found
  • llms.txt not found
  • ai.txt not found

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Audience

  • 75% desktop
  • 25% phone
  • India
  • Brazil
  • United States

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

4.68 / 10 · ranked #374,803 of all domains

106 referring domains · OpenPageRank

Core Web Vitals

LCP1.9 s
INP25 ms
CLS0
TTFB600 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: English
  • Weight: 6.3 MB · 40 requests
  • Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Oct 2026.

Organisation

From the homepage's own structured data (Oct 2026).

Infrastructure

  • Registered Jun 2015 (11 years) via Name SRS AB, renews Jun 2027
  • Hosted on CLOUDSCALE cloudscale.ch AG (5.102.151.73)
  • DNS: hoststar.hosting
  • Email: mailbox.org
  • Email security: SPF (hard fail), DMARC reject, BIMI
  • SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
  • Common Crawl link graph: rank 519,846, 7 hosts

DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted

Subdomains

HostTechs
docs.librepcb.org 10
librepcb.org 6
fab.librepcb.org 5

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