indexo.dev

astro4edu.org

.org crawl

First seen 2026-04-13 · Last seen 2026-05-07 · ok HTTP/1.1 200 824 ms crawled 2026-05-07

DE · 149.217.71.11 · AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
IAU Office of Astronomy for Education
Language
en

Open Graph

title
IAU Office of Astronomy for Education
locale
en
description
The IAU Office of Astronomy for Education is the IAU's office focussed on primary and secondary education.

Technology

Server
nginx
CMS
Gatsby

Social

Registration

Registrar
COREhub, S.R.L.
Created
2019-12-19
Expires
2026-12-19 214 days left
Updated
2026-02-02
Name servers
  • dns-1.dfn.de
  • dns-3.dfn.de
  • dns1.mpia-hd.mpg.de

DNS records live

NS
  • dns-1.dfn.de
  • dns-3.dfn.de
  • dns1.mpia-hd.mpg.de
MX
  • 10 a1234.mx.srv.dfn.de
  • 10 b1234.mx.srv.dfn.de
  • 10 c1234.mx.srv.dfn.de
TXT
  • google-site-verification=GOqqMxX108017BDjoXsjkm0oKdyqDwCtqK33Wt3uPzc
  • HARICA-wreqgszHg32pyhDcM8V

Email authentication strong

SPF
v=spf1 ip4:149.217.71.6 ip4:149.217.71.135 ip4:149.217.70.16 include:spfhard.crsend.com -all
strict (-all)
DMARC
v=DMARC1; p=none; sp=quarantine; rua=mailto:postmaster@mpia-hd.mpg.de;
policy: none (monitoring only) · sp=quarantine
DKIM
no key found at common selectors

Certificate (current)

GEANT TLS RSA 1
from 2026-03-06 to 2027-03-06
Expires in 292 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 65/100 Checked live page: https://astro4edu.org/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • cross-origin-opener-policy
findings
  • missing Content Security Policy
  • weak frame protection
  • weak content type protection
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-frame-options
DENY, DENY
x-content-type-options
nosniff, nosniff
strict-transport-security
max-age=63072000; includeSubdomains
cross-origin-opener-policy
same-origin

Links to (9)

Linked from (2)