What powers distributed-systems.net?

Last seen Sep 2026 · 12 technologies across 10 categories

CMS

WordPress v7.1
since Aug 2018

Databases

MySQL
since Aug 2018

Font scripts

Twitter Emoji (Twemoji)
since Aug 2018

JavaScript libraries

jQuery v3.7.1
since Aug 2018
jQuery Migrate v3.4.1
since Aug 2018

Miscellaneous

RSS
since Dec 2022

Operating systems

Ubuntu
since Aug 2018

Performance

Priority Hints
since Aug 2023

Programming languages

PHP
since Aug 2018

Web servers

Apache HTTP Server v2.4.58
since Aug 2018

WordPress plugins

Contact Form 7 v6.1.7
since Feb 2022
WP-Optimize
since Sep 2024

AI Crawlers

No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.

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

See who blocks each AI crawler across the web

Top search keywords

KeywordPositionEst. monthly visits
distributed systems #7 210
distributed systems #17 35
distributed system principles and paradigms #3 25
distributed systems: principles and paradigms #3 19
distributed systems andrew s tanenbaum #1 9
distributed #19 6
distributed systems: principles and paradigms #7 5
distributed #51 5
distributed systems principles and paradigms #6 3
what is a distributed system #68 2
distributed systems: principles and paradigms tanenbaum #4 2
what is distributed systems #71 1
what is distributed system #79 1
distributed systems: principles #8 1
distributed system tanenbaum #8 1
distributed system principles and paradigms #45 1
distributed computing books #7 1
distributed computing book #8 1
edition 3rd #60 1
best books for distributed systems #73 0
best books for distributed systems #23 0
best distributed systems books #25 0
best book on distributed systems #55 0
best book distributed systems #78 0
best book distributed systems #24 0

The site's top keywords in Google (US), with the visits each one is estimated to bring per month.

Top backlinks

Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.

AI Crawlers

No robots.txt, all AI crawlers allowed

Full breakdown

Audience

  • 73% desktop
  • 27% phone
  • India
  • United States
  • Indonesia
  • Brazil

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

Open Page Rank

5.93 / 10 · ranked #114,414 of all domains

72 referring domains · OpenPageRank

Search traffic

330 est. monthly organic visits (US)

50 keywords in Google's top 30

Core Web Vitals

LCP1.3 s
INP25 ms
CLS0
TTFB800 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: English (United States)
  • Weight: 1.0 MB · 22 requests
  • WordPress theme: catch-everest · all themes

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

  • Registered Aug 2009 (17 years) via Dynu Systems Incorporated, renews Aug 2027
  • Hosted on NL-SOLCON SOLCON (213.134.239.52)
  • DNS: dynu.com
  • Email: distributed-systems.net
  • Email security: SPF (soft fail), DMARC monitor only
  • SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
  • Common Crawl link graph: rank 7,175, 4 hosts

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

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