jestjs.io

.io crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 710 ms crawled 2026-05-18

US · 104.18.21.144 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title

Jest · 🃏 Delightful JavaScript Testing

Language

Generator

Docusaurus v3.10.1

Canonical

https://jestjs.io/

Translations

en
es-es
fr
ja
pt-br
ro
ru
uk
zh-hans

Feeds

Jest RSS Feed RSS
Jest Atom Feed Atom

Open Graph

url: https://jestjs.io/
title: Jest
locale: en
locale:alternate: zh_Hans

Technology

CDN: Cloudflare

Analytics

Google Analytics
Google Tag Manager

Third-party hosts loaded (5)

images.opencollective.com×3
www.googletagmanager.com×2
hp439uusol-dsn.algolia.net×1
i.ytimg.com×1
www.google-analytics.com×1

Social

DNS records live

NS

stevie.ns.cloudflare.com
tate.ns.cloudflare.com

MX

10 eforward1.registrar-servers.com
10 eforward2.registrar-servers.com
10 eforward3.registrar-servers.com
15 eforward4.registrar-servers.com
20 eforward5.registrar-servers.com

TXT

ALIAS for jestjs.netlify.app

Email authentication weak

SPF: v=spf1 include:spf.efwd.registrar-servers.com ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

WE1

from 2026-05-02 to 2026-07-31

Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://jestjs.io/

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=31536000