nullmodem.org

.org dns crawl

First seen 2026-05-02 · Last seen 2026-05-15 · ok HTTP/1.1 200 6440 ms crawled 2026-05-09

US · 192.227.225.78 · AS36352 HostPapa

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Index of /

Technology

Server: Apache

DNS records live

NS

ns1.nullmodem.org
ns2.nullmodem.org
ns3.nullmodem.org
ns4.nullmodem.org
ns5.nullmodem.org

MX

1 mail1.nullmodem.org
20 mail2.nullmodem.org
20 mail3.nullmodem.org
20 mail4.nullmodem.org
20 mail5.nullmodem.org

Email authentication strong

SPF: v=spf1 ip4:192.227.225.78 ip4:199.19.224.173 ip6:2605:6400:20:1388::2 mx -all
strict (-all)
DMARC: v=DMARC1; p=quarantine; rua=mailto:dmarc@nullmodem.org
policy: quarantine
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-06 to 2026-07-05

Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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