indexo.dev

kattis.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-06 · ok HTTP/1.1 200 1232 ms crawled 2026-05-06

US · 104.26.4.52 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

sector tech type homepage

HTML metadata

Title
Kattis

Technology

CDN
Cloudflare
Analytics
  • Cloudflare Insights

Third-party hosts loaded (4)

  • cdnjs.cloudflare.com×8
  • ajax.googleapis.com×1
  • static.cloudflareinsights.com×1
  • static.zdassets.com×1

Social

Contact

Email
Phone

Registration

Registrar
Cloudflare, Inc.
Created
2002-05-24
Expires
2027-05-24 369 days left
Updated
2026-04-24
Name servers
  • dee.ns.cloudflare.com
  • kip.ns.cloudflare.com

DNS records live

NS
  • dee.ns.cloudflare.com
  • kip.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
Show 4 TXT records
  • detectify-verification=f9923f287d22c6673973438468d67632
  • google-site-verification=3uTghJbNBqPTkNMsSs3dKwseC-UNlEx9vDJO9Q-q8aI
  • google-site-verification=vgE4j3_FQzQ5YX_jCSyfZRi9H89-vl6Ch5QJxzppw0c
  • _xqfy4gp4fck8rfamtt4s0o5w5aezi1u

Email authentication strong

SPF
v=spf1 include:kattis_com._es.easydmarc.com ~all
softfail (~all)
DMARC
v=DMARC1;p=quarantine;sp=none;rua=mailto:6395687d31d24e3882e0e128498b6af8@dmarc-reports.cloudflare.net,mailto:easy5854121@easydmarc.com;ruf=mailto:ruf@rep.easydmarc.com;fo=1
policy: quarantine · sp=none
DKIM
Show 4 DKIM selectors
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA59C/sqFKjKW9NvHMX1kX0up3Jj75eQTLthsPJVgEL35kN2SnUyxeJJrm9PhNDHTKqdFZREC85lLGUv…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw5AiN8EfnlJtadgo0nqINep1BYw9QdYOj5wsJKAuiBr97y/fdMBth/SQnF1cJG+ccKJv3M3lE5QWsXWQTj…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDlx5eBBUlX6jgsWw2RKdpjSjOfW3JziDZECLBt2dTeJlRbGIB0ndbh8vrF9dmpIQhEiEVPkURQbx/WLpBP2PKrnQ…
selectors probed

Certificate (current)

WE1
from 2026-04-22 to 2026-07-21
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.kattis.com/

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

Links to (3)

Linked from (2)