indexo.dev

cppunderthesea.nl

.nl crawl

First seen 2026-05-19 · Last seen 2026-05-19 · ok HTTP/1.1 200 2021 ms crawled 2026-05-29

NL · 35.214.231.31 · AS43515 Google Ireland Limited

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
C++ Under the Sea 2026 – International C++ Conference 2026
Language
en-US
Canonical
https://cppunderthesea.nl/
Feeds

Technology

Server
nginx
CMS
WordPress
Social widgets
  • YouTube Embed

Third-party hosts loaded (2)

  • www.google.com×1
  • www.youtube.com×1

Social

Contact

Phone

Registration

Registrar
Domain Robot
Created
2020-01-25
Updated
2026-02-15
Name servers
  • ns2.ams19.siteground.eu
  • ns1.ams19.siteground.eu

DNS records live

NS
  • ns1.siteground.net
  • ns2.siteground.net
MX
  • 10 in1-smtp.messagingengine.com
  • 20 in2-smtp.messagingengine.com

Email authentication partial

SPF
v=spf1 include:spf.messagingengine.com ?all
neutral (?all)
DMARC
v=DMARC1; p=none; aspf=r; adkim=r;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArJDBg8daKBXbiuGkHNSlzMb6qEGgDeAM1CuAUr8jrl4FZ1DO54kXO/9FDuopuoHscpTuly2baXhHud…
selectors probed

Certificate (current)

R13
from 2026-05-14 to 2026-08-12
Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://cppunderthesea.nl/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (15)

Linked from (2)