csplib.org

.org crawl

First seen 2026-05-08 · Last seen 2026-05-15 · ok HTTP/1.1 200 3033 ms crawled 2026-05-15

US · 185.199.108.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: CSPLib: A problem library for constraints
Language: en

Technology

CDN: Fastly
Server: GitHub.com

Third-party hosts loaded (2)

cdnjs.cloudflare.com×1
i.creativecommons.org×1

Social

Registration

Registrar

Register SpA

Created

2000-06-26

Expires

2027-06-26 402 days left

Updated

2026-03-30

Name servers

ns0.lcn.com
ns1.lcn.com
ns2.lcn.com

DNS records live

NS

ns0.lcn.com
ns1.lcn.com
ns2.lcn.com

MX

30 mailforward.lcn.com

Email authentication weak

SPF: not published
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-03 to 2026-07-02

Expires in 44 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.csplib.org/

findings

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

Links to (3)