indexo.dev

availabilitycal.com

.com crawl

First seen 2026-05-02 · Last seen 2026-05-20 · ok HTTP/1.1 200 584 ms crawled 2026-05-08

GB · 109.203.100.27 · AS31727 Node4 Limited

Reputation 87/100 weak security headers no dmarc policy

sector tech type homepage

HTML metadata

Title
AvailabilityCal
Language
en

Technology

Server
Apache
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×2
  • fonts.gstatic.com×1

Registration

Registrar
123-Reg Limited
Created
2023-01-12
Expires
2027-01-12 236 days left
Updated
2026-01-13
Name servers
  • ns1.18aproductions.com
  • ns2.18aproductions.com

DNS records live

NS
  • ns1.18aproductions.com
  • ns2.18aproductions.com
MX
  • 0 availabilitycal.com
Verified for
  • Google

Email authentication weak

SPF
v=spf1 +a +mx +ip4:109.203.100.27 ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAm46eqZeMByPpSWK0rLkR+OPCZ2G/mW2xJz9L84M08z+LkWgdmANhjPEqU0RrrcVguBLFtUuoaauNtP…
selectors probed

Certificate (current)

R12
from 2026-03-21 to 2026-06-19
Expires in 29 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)