holdcalculator.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-07 · ok HTTP/1.1 200 2100 ms crawled 2026-05-07

US · 3.164.68.46 · AS16509 Amazon.com, Inc.

Reputation 100/100

sector gambling type landing page

HTML metadata

Title: Hold Calculator: Calculate your Sportsbooks margin
Description: Make your sports betting experience easier with our hold calculator, calculate what your sportsbook is taking from every bet!
Language: en
Canonical: https://holdcalculator.com

Technology

CDN: Amazon CloudFront
Server: nginx

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (2)

fonts.googleapis.com×1
www.googletagmanager.com×1

Contact

Email

contact@gtgnetwork.com

Registration

Registrar

Dreamscape Networks International Pte Ltd

Created

2020-11-04

Expires

2027-11-04 533 days left

Updated

2025-10-20

Name servers

ns-1288.awsdns-33.org
ns-1650.awsdns-14.co.uk
ns-339.awsdns-42.com
ns-578.awsdns-08.net

DNS records live

NS

ns-1288.awsdns-33.org
ns-1650.awsdns-14.co.uk
ns-339.awsdns-42.com
ns-578.awsdns-08.net

Email authentication no MX

SPF: not published
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

Amazon RSA 2048 M01

from 2026-03-09 to 2026-09-23

Expires in 126 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://holdcalculator.com/

present

strict-transport-security
content-security-policy
x-content-type-options
referrer-policy

findings

CSP allows unsafe inline scripts/styles
CSP uses wildcard sources
missing frame protection
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
content-security-policy: default-src 'self' data: blob: 'unsafe-inline' 'unsafe-eval' *.geniusgames.com.au *.gtgnetwork.com *.googletagmanager.com *.google-analytics.com *.google.com *.googleapis.com *.gstatic.com *.wistia.com *.sentry-cdn.com
strict-transport-security: max-age=31536000; includeSubdomains; preload