checkalc.com

.com crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 511 ms crawled 2026-06-02

CZ · 95.168.210.61 · AS39392 SH.cz s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title

CheckAlc.com - alcohol calculator and alcohol tester online

Language

Canonical

https://www.checkalc.com/

Translations

Technology

Server: Apache
Stack: Java

Analytics

Google Tag Manager

Ads

Google AdSense

Fonts

Google Fonts

Third-party hosts loaded (7)

ajax.googleapis.com×3
fonts.googleapis.com×2
www.googletagmanager.com×2
cdn.cpex.cz×1
pagead2.googlesyndication.com×1
www.alkoholmetr.cz×1
www.licznikpromili.pl×1

Registration

Registrar

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

Created

2014-11-06

Expires

2026-11-06 156 days left

Updated

2025-10-08

Name servers

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

DNS records live

NS

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

MX

10 mailin1.checkalc.com
100 mailin2.checkalc.com

Verified for

Google

Email authentication weak

SPF

v=spf1 ip4:95.168.210.61 include:_spf.google.com -all

strict (-all)

DMARC

not published

DKIM

mail: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3RONa561mkg+WoyqPBN3dSW5soHUUaEDLs3GBxfXGwIrcY20gjZcQkbXSsxhreIncsVCzjGccjKXhY…

selectors probed

Certificate (current)

R13

from 2026-05-06 to 2026-08-04

Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.checkalc.com/

present

strict-transport-security
x-frame-options
x-content-type-options

findings

missing Content Security Policy
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: DENY
x-content-type-options: nosniff
strict-transport-security: max-age=31536000 ; includeSubDomains