contenttype.net

.net crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 430 ms crawled 2026-06-01

US · 172.67.176.101 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Content-Type Check | Validate MIME Types
Description: Check the Content-Type header of any URL. Validate if the MIME type matches the file extension.
Language: en
Canonical: https://contenttype.net/

Open Graph

url: https://contenttype.net/
title: Content-Type Check | contenttype.net
site name: contenttype.net
description: Check the Content-Type header of any URL. Validate if the MIME type matches the file extension.

Technology

CDN: Cloudflare
CMS: Gatsby

Third-party hosts loaded (1)

challenges.cloudflare.com×1

Registration

Registrar

Porkbun LLC

Created

2025-12-08

Expires

2026-12-08 186 days left

Updated

2026-04-21

Name servers

chan.ns.cloudflare.com
sri.ns.cloudflare.com

DNS records live

NS

chan.ns.cloudflare.com
sri.ns.cloudflare.com

Verified for

Google

Email authentication no MX

SPF

v=spf1 -all

strict (-all)

DMARC

v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

policy: reject (enforced) · sp=reject

DKIM

Show 12 DKIM selectors

default: v=DKIM1; p=
google: v=DKIM1; p=
selector1: v=DKIM1; p=
selector2: v=DKIM1; p=
k1: v=DKIM1; p=
k2: v=DKIM1; p=
mail: v=DKIM1; p=
dkim: v=DKIM1; p=
s1: v=DKIM1; p=
s2: v=DKIM1; p=
mxvault: v=DKIM1; p=
smtpapi: v=DKIM1; p=

selectors probed

Certificate (current)

from 2026-04-21 to 2026-07-20

Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://contenttype.net/

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: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=63072000; includeSubDomains; preload