What powers dabeaz.com?

Last seen Oct 2026 · 14 technologies across 10 categories

CDN

cdnjs
since Nov 2021
Cloudflare
since May 2022
jQuery CDN
since Feb 2022

JavaScript Frameworks

Ember.js v3.8.0
since May 2019
Handlebars v4.1.2
since May 2019

JavaScript Libraries

jQuery v3.2.1
since Nov 2017
Moment.js v2.24.0
since May 2019

Message Boards

Discourse v2.3.0
since May 2019

Miscellaneous

Popper v1.11.0
since Feb 2021

Programming Languages

Ruby
since May 2019

Reverse Proxy

Nginx
since May 2019

UI frameworks

Bootstrap v4.0.0-beta
since Nov 2017

Web Frameworks

Ruby on Rails
since May 2019

Web servers

Apache HTTP Server
since Jan 2016

AI Crawlers

Blocks 14 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.

Training crawlers

  • Applebot-Extended Blocked
  • Bytespider Blocked
  • CCBot Blocked
  • cohere-training-data-crawler Blocked
  • Diffbot Blocked
  • FacebookBot Blocked
  • GPTBot Blocked
  • ImagesiftBot Blocked
  • img2dataset Blocked
  • Webzio-Extended Blocked

Search and AI assistants

  • Amazonbot Blocked
  • OAI-SearchBot Blocked
  • PerplexityBot Blocked
  • YouBot Blocked

The other 19 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

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

See who blocks each AI crawler across the web

Top search keywords

KeywordPositionEst. monthly visits
david beazley #1 71
lex python #1 64
python lex #1 64
lex-yacc python #1 15
python lex-yacc #1 15
sicp #14 11
python gil #14 10
dabeaz #1 9
python yacc #1 8
python essential reference book #2 8
python cookbook #8 7
ply #12 4
david beazley python #1 3
ply install #5 3
lex yacc #10 3
python ply #1 2
lexer python #4 2
python lexer #6 2
compiler course #7 2
install ply #5 1
os.execv python #6 1
lexer in python #8 1
python cookbook pdf #8 1
python talks #8 1
raft python #8 1

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

14 of 33 AI crawlers blocked

Full breakdown

Audience

  • 65% desktop
  • 35% phone
  • United States

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

Open Page Rank

6.22 / 10 · ranked #94,878 of all domains

332 referring domains · OpenPageRank

Search traffic

320 est. monthly organic visits (US)

93 keywords in Google's top 30

Core Web Vitals

LCP1.2 s
CLS0
TTFB1100 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: English
  • Weight: 0.1 MB · 8 requests

Homepage as crawled by the HTTP Archive, Oct 2026.

Infrastructure

  • Registered Apr 2005 (21 years) via DomainPeople, Inc., renews Apr 2030
  • Hosted on AFFINITY-FTL - Ntirety, Inc. (207.150.218.207)
  • DNS: hostway.net
  • Email: dabeaz.com
  • Email security: SPF (soft fail), no DMARC record
  • Common Crawl link graph: rank 40,238, 2 hosts

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

Subdomains

HostTechs
forum.dabeaz.com 8
dabeaz.com 7
www.dabeaz.com 7

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