What powers eje.cz?

Last seen Aug 2026 · 9 technologies across 7 categories

CDN

jQuery CDN
since Feb 2022

Font scripts

Google Font API
since May 2020

JavaScript libraries

jQuery v1.12.4
since May 2020
Modernizr v2.8.3
since May 2020

Miscellaneous

Open Graph
since Aug 2023
PWA
since Aug 2023

Security

HSTS
since Sep 2022

Web servers

Apache HTTP Server
since May 2020

Webmail

Microsoft 365
since Mar 2024

AI Crawlers

Blocks 2 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.

Training crawlers

  • Bytespider Blocked
  • CCBot Blocked

The other 31 AI crawlers we track are not mentioned and stay allowed by default.

  • 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
reduviid #27 230
coleoptera meloidae #53 47
carabidae #23 38
coleoptera tenebrionidae #36 31
coleoptera buprestidae #31 21
vanessa atalanta butterfly #18 15
pyrrhocoris apterus #9 11
reproduction of scorpion #4 9
antheraea assamensis #7 8
chrysomya megacephala #6 7
chrysomya megacephala #6 7
mantis eyes #37 5
how do scorpions reproduce #12 5
crown spiders #7 5
pronotum #15 4
drosophila repleta #5 4
beetle mites #10 3
breeding scorpion #6 3
spermatheca #16 3
oxycarenus lavaterae #4 3
phylogenetic tree of arthropods #10 3
pitfall traps #25 3
hindwing #10 3
calliphoridae life cycle #75 2
butterfly wing veins #7 2

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

2 of 33 AI crawlers blocked

Full breakdown

Audience

  • 73% desktop
  • 27% phone
  • India

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

Open Page Rank

6.39 / 10 · ranked #82,703 of all domains

192 referring domains · OpenPageRank

Search traffic

550 est. monthly organic visits (US)

600 keywords in Google's top 30

Core Web Vitals

LCP2.2 s
CLS0
TTFB1300 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Weight: 0.2 MB · 28 requests
  • Structured data: OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Organisation

  • European Journal of Entomology
  • Founded: 1993

From Wikidata (CC0).

Infrastructure

  • Hosted on TLAP-ZCOM (185.178.174.244)
  • DNS: forpsi.cz
  • Email: Microsoft 365
  • Email security: no SPF record, no DMARC record, DNSSEC signed
  • SSL: Let's Encrypt, RSA 4096, expires Dec 2026
  • Common Crawl link graph: rank 473,306, 2 hosts

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Subdomains

HostTechs
eje.cz 9
www.eje.cz 9

Full technology history →
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Recent changes

  • dropped PHP Aug 2026

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