threadreaderapp.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1162 ms crawled 2026-05-19

US · 172.67.156.173 · AS13335 Cloudflare, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Home – Thread Reader App
Description: Thread Reader helps you discover and read the best of Twitter Threads

Open Graph

title: Read and Share Twitter Threads easily!
description: Thread Reader helps you read and share the best of Twitter Threads

Technology

CDN: Cloudflare

Ads

Google AdSense

Fonts

Google Fonts

Social widgets

Twitter Widget

Third-party hosts loaded (5)

pbs.twimg.com×15
cdnjs.cloudflare.com×3
fonts.googleapis.com×1
pagead2.googlesyndication.com×1
platform.twitter.com×1

Social

Contact

Email

hello@threadreaderapp.com

Registration

Registrar

Cloudflare, Inc.

Created

2017-11-13

Expires

2026-11-13 177 days left

Updated

2025-10-14

Name servers

elma.ns.cloudflare.com
jeremy.ns.cloudflare.com

DNS records live

NS

elma.ns.cloudflare.com
jeremy.ns.cloudflare.com

MX

32 isaac.mx.cloudflare.net
8 amir.mx.cloudflare.net
96 linda.mx.cloudflare.net

TXT

xxv=spf1 include:mailgun.org ~all
google-site-verification=yAlZFzuAticXegY1YGTgd9zMNopaIp4vwbtTk5iGitI
stripe-verification=bc604bc010ad16a6ed1336a2ae716ac24a4f3f2758b233bed95ddfbc045e2c8a

Email authentication partial

SPF

v=spf1 include:_spf.mx.cloudflare.net ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:aff7cf9cbd1047aaa6e1d4fe888ce81e@dmarc-reports.cloudflare.net

policy: none (monitoring only)

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApSaQ4txV6KC2Nl7LTgvX8m2e4PYcoibgWqVxUdRb4GJsp+tZfIRFk//elZu8DO5dWFrVVn7tKMJdgthe7d…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1BjSfWvk7oVWMca0ybHsL24+9vDqj2Utz8qDG/MTRpH8sbapmU3cpKtfQeAllAvklwb6XFqUSd9ncn7m8/…

selectors probed

Certificate (current)

from 2026-05-10 to 2026-08-08

Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://threadreaderapp.com/

present

x-frame-options
x-content-type-options
referrer-policy

findings

missing HSTS
missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff