indexo.dev

codestack.org

.org crawl

First seen 2026-04-17 · Last seen 2026-05-08 · ok HTTP/1.1 200 1416 ms crawled 2026-05-12

US · 20.98.97.24 · AS8075 Microsoft Corporation

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
CodeStack - For public educators, by public educators
Language
en

Technology

Server
Microsoft-IIS
Analytics
  • Google Tag Manager

Third-party hosts loaded (4)

  • stackpath.bootstrapcdn.com×2
  • cdn.jsdelivr.net×1
  • code.jquery.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Tucows Domains Inc.
Created
2013-12-02
Expires
2026-12-02 196 days left
Updated
2025-08-06
Name servers
  • ns-1479.awsdns-56.org
  • ns-1010.awsdns-62.net
  • ns-1899.awsdns-45.co.uk
  • ns-471.awsdns-58.com

DNS records live

NS
  • ns-1010.awsdns-62.net
  • ns-1479.awsdns-56.org
  • ns-1899.awsdns-45.co.uk
  • ns-471.awsdns-58.com
MX
  • 10 mxa.mailgun.org
  • 10 mxb.mailgun.org

Email authentication strong

SPF
v=spf1 +mx include:sendgrid.net include:mailgun.org ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:dd1a0fca@dmarc.mailgun.org,mailto:b155d965@inbox.ondmarc.com,mailto:dmarc_agg@vali.email; ruf=mailto:dd1a0fca@dmarc.mailgun.org,mailto:b155d965@inbox.ondmarc.com;
policy: reject (enforced)
DKIM
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9/msyVfuduniDEPUr2h6XDRlvb9yXi31J+f2e4C73L6iY/vD4rYiaKKArYJgsMrx5Hj0pAaduy86wk5k5YbGtFPmjbLm…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtbmesHpzpUdP421eu27ZDV+eCTg2nNZ1aXBANjRmIaxViUL8Fk28Gwz/xSlB5oEZDRAzuF6UnktL6BHaiH…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrHyLM+Mp1uQ9BUGTLAAWwPsEG35gpuhjRG5KYjQsowJdKtHtXYo8vuhiCnIHLPYM3+S5kCjqVNgeD9ZAcIbD5V0…
selectors probed

Certificate (current)

RapidSSL TLS RSA CA G1
from 2026-02-04 to 2027-02-04
Expires in 260 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (5)

Linked from (1)