indexo.dev

theoryofcomputing.org

.org crawl

First seen 2026-04-15 · Last seen 2026-05-12 · ok HTTP/1.1 200 1082 ms crawled 2026-05-10

US · 128.135.164.114 · AS160 The University of Chicago

Reputation 95/100 weak security headers

sector education type homepage

HTML metadata

Title
Theory of Computing: An Open Access Electronic Journal in Theoretical Computer Science

Technology

Server
Apache

Third-party hosts loaded (1)

  • cdnjs.cloudflare.com×1

Registration

Registrar
PDR Ltd. d/b/a PublicDomainRegistry.com
Created
2004-05-07
Expires
2029-05-07 1083 days left
Updated
2021-06-02
Name servers
  • ns1.active-dns.com
  • ns2.active-dns.com
  • ns3.active-dns.com
  • ns4.active-dns.com

DNS records live

NS
  • ns1.active-dns.com
  • ns2.active-dns.com
  • ns3.active-dns.com
  • ns4.active-dns.com

Email authentication no MX

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

Certificate (current)

E8
from 2026-03-16 to 2026-06-14
Expires in 25 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (4)