mathunion.org

.org crawl

First seen 2026-04-15 · Last seen 2026-05-17 · ok HTTP/1.1 200 1689 ms crawled 2026-05-11

DE · 62.141.176.102 · AS20588 Forschungsverbund Berlin e.V.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: International Mathematical Union (IMU) | Advancing Mathematics Worldwide
Description: Official website of the International Mathematical Union (IMU). Explore global initiatives, news, programs, commissions, and resources supporting mathematics worldwide.
Language: en
Generator: Drupal 11 (https://www.drupal.org)
Canonical: https://www.mathunion.org/

Technology

Server: nginx
CMS: Drupal

Social

Contact

Email

Phone

493020372430

Registration

Registrar

COREhub, S.R.L.

Created

1999-12-22

Expires

2026-12-22 216 days left

Updated

2026-02-05

Name servers

deneb.dfn.de
dns-2.dfn.de
lagrange.wias-berlin.de
laplace.wias-berlin.de

DNS records live

NS

deneb.dfn.de
dns-2.dfn.de
lagrange.wias-berlin.de
laplace.wias-berlin.de

MX

20 a1926.mx.srv.dfn.de
20 b1926.mx.srv.dfn.de
20 c1926.mx.srv.dfn.de

TXT

google-site-verification=EyaBCWW-5LN0E7p_Ujm8XrGdde9vHjanJB_wuOm4TGg
HARICA-YBzh232DOrQ10zW7TZf
brevo-code:a35134409bb3bee12670610491689f96

Email authentication partial

SPF

v=spf1 +mx +ip4:62.141.176.103 +ip4:62.141.177.90 +a:smtp.mathunion.org +a:smtp.wias-berlin.de ~all

softfail (~all)

DMARC

v=DMARC1;p=none;rua=mailto:postmaster@mathunion.org

policy: none (monitoring only)

DKIM

mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…

selectors probed

Certificate (current)

GEANT TLS RSA 1

from 2025-07-24 to 2026-07-24

Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.mathunion.org/

present

content-security-policy
x-frame-options
x-content-type-options

findings

missing HSTS
weak frame protection
weak content type protection
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN, SAMEORIGIN
x-content-type-options: nosniff, nosniff
content-security-policy: frame-ancestors 'self'