codsen.com

.com crawl

First seen 2026-04-30 · Last seen 2026-04-30 · ok HTTP/1.1 200 1477 ms crawled 2026-05-08

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: Web and Email development tools and tips | Codsen
Description: Web and Email development tools, tips and articles. Curated by Roy Revelt.
Language: en
Canonical: https://codsen.com

Open Graph

url: https://codsen.com
title: Web and Email development tools and tips | Codsen
locale: en
site name: Codsen
description: Web and Email development tools, tips and articles. Curated by Roy Revelt.

Technology

CDN: Vercel

Social

Registration

Registrar

Cloudflare, Inc.

Created

2017-02-01

Expires

2027-02-01 257 days left

Updated

2026-01-02

Name servers

kara.ns.cloudflare.com
trey.ns.cloudflare.com

DNS records live

NS

kara.ns.cloudflare.com
trey.ns.cloudflare.com

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

TXT

google-site-verification=NBjiZfWWcehO7PEDcwH6UzJJaXe0ulWfDl_OhQuZilc

Email authentication weak

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

Certificate (current)

R12

from 2026-03-14 to 2026-06-12

Expires in 24 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://codsen.com/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=63072000