indexo.dev

autograder.io

.io crawl

First seen 2026-04-14 · Last seen 2026-05-06 · ok HTTP/1.1 200 713 ms crawled 2026-05-07

US · 141.212.114.154 · AS36375 University of Michigan

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Autograder.io

Technology

Server
nginx

DNS records live

NS
  • csedns.eecs.umich.edu
  • dns.eecs.umich.edu
  • eecsdns.eecs.umich.edu
MX
  • 10 higgins.eecs.umich.edu

Email authentication weak

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

Certificate (current)

InCommon RSA Server CA 2
from 2026-04-15 to 2026-10-31
Expires in 163 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://autograder.io/

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

Linked from (1)