indexo.dev

axler.net

.net crawl

First seen 2026-05-07 · Last seen 2026-05-14 · ok HTTP/1.1 200 1180 ms crawled 2026-05-14

US · 192.252.149.22 · AS8739 ICDSoft Ltd.

Reputation 89/100 weak security headers dmarc monitor-only

sector education type homepage

HTML metadata

Title
Sheldon Axler's Home Page

Technology

Server
Apache

Registration

Registrar
Tucows Domains Inc.
Created
2000-05-28
Expires
2027-05-28 373 days left
Updated
2026-04-29
Name servers
  • ns1.server309.com
  • ns2.server309.com

DNS records live

NS
  • ns1.server309.com
  • ns2.server309.com
MX
  • 0 mail.axler.net

Email authentication partial

SPF
v=spf1 a mx include:server309.smtp-spf.sureserver.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • dkim: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCzYZjxk71p93NYh7xXwW4ONJIUTVAX3jlpyfZ8iG2dvBtAJFW3gZKGh4KNRFth7cHTXoB5QwDFV4IPUuk2wl…
selectors probed

Certificate (current)

R13
from 2026-05-11 to 2026-08-09
Expires in 82 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://axler.net/

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

Linked from (1)