What powers planetmath.org?

Last seen Jun 2026 · 4 technologies across 4 categories

Operating systems

Red Hat
since Mar 2024

Security

HSTS
since Sep 2022

Web server extensions

OpenSSL v3.5.5
since Sep 2018

Web servers

Apache HTTP Server v2.4.62
since Apr 2018

Top search keywords

KeywordPositionEst. monthly visits
quartic formula #6 18,600
square root of 3 #11 450
list of fibonacci numbers #2 260
fibonacci list #2 260
square root of three #11 230
what is hexagonal number #5 210
fibonacci numbers list #2 190
therefore sign #7 170
p norm #2 160
laplacian in spherical coordinates #3 160
solenoidal #43 160
wronskian determinant #6 150
triangle inequality #9 150
kleene star #2 140
therefore symbol #8 130
tetrahedron #58 130
metric system #55 130
math planet #3 130
ito formula #4 120
laplace operator in spherical coordinates #4 110
tautology #37 100
square root of 2 #27 100
cosh taylor expansion #1 97
sinh taylor series #1 97
riccati equation #3 86

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.

Audience

  • 51% desktop
  • 45% phone
  • 4% tablet
  • United States
  • India
  • Japan
  • Germany
  • United Kingdom
  • France

Countries where the site has Chrome traffic, strongest markets first.

Open Page Rank

6.41 / 10 · ranked #81,307 of all domains

329 referring domains · OpenPageRank

Search traffic

36,200 est. monthly organic visits (US)

11,438 keywords in Google's top 30

Core Web Vitals

LCP2.1 s
INP75 ms
CLS0.15
TTFB1200 ms

Real user p75, Chrome UX Report, Jun 2026.

Page

  • Weight: 0.0 MB · 2 requests

Homepage as crawled by the HTTP Archive, Jul 2026.

Subdomains

HostTechs
planetmath.org 4
www.planetmath.org 4

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