What powers tcpipguide.com?

Last seen Oct 2026 · 2 technologies across 2 categories

Editors

FrontPage v6.0
since Jan 2016

Web servers

Apache HTTP Server
since Jan 2016

AI Crawlers

No robots.txt, so all AI crawlers are allowed by default. Checked Nov 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
tcp ip state machine #1 43
tcp state machine #1 43
tcp/ip guide #1 39
udp ip #59 31
default subnet mask #5 28
tcp/ip #30 25
class b subnet mask #4 21
subnet mask class b #4 21
tcp book #3 20
tcp ip guide book #2 19
tcp/ip guide book #2 19
datagram ip #5 17
bit by byte #67 17
the tcp/ip guide #2 15
book on tcp/ip #4 14
tcp/ip textbook #4 14
multicast address range #6 13
tcp ip #28 13
tcp ip guide #1 10
dhcp renewal #5 10
automatic private ip addressing #49 9
default subnet mask of class a #2 8
class c subnet mask #11 8
kozierok tcp ip guide #4 7
ip datagram format #2 6

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

  • 69% desktop
  • 31% phone
  • United States
  • India

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

Open Page Rank

5.38 / 10 · ranked #174,136 of all domains

235 referring domains · OpenPageRank

Search traffic

820 est. monthly organic visits (US)

1,420 keywords in Google's top 30

Core Web Vitals

LCP1.3 s
INP50 ms
CLS0.1
TTFB600 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Weight: 0.2 MB · 19 requests

Homepage as crawled by the HTTP Archive, Oct 2026.

Infrastructure

  • Registered Aug 2003 (23 years) via pair Networks, Inc. d/b/a pair Domains, renews Aug 2027
  • Hosted on PAIR-NETWORKS - pair Networks (216.92.67.219)
  • DNS: ns0.com
  • Email: pair.com
  • Email security: no SPF record, no DMARC record
  • Common Crawl link graph: rank 458,797, 2 hosts

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

Subdomains

HostTechs
tcpipguide.com 2
www.tcpipguide.com 2

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