stack-auth.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 409 ms crawled 2026-05-18

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Stack Auth
Description: Stack Auth is the open-source Auth0 alternative. We are your login and signup page, and everything that comes with that.
Language: en

Open Graph

url: https://stack-auth.com
title: Stack Auth — the open-source Auth0 & Clerk alternative
locale: en_US
site name: Stack Auth
description: Stack Auth is the open-source Auth0 alternative. We are your login and signup page, and everything that comes with that.

Technology

CDN: Vercel
CMS: Next.js

Social

Contact

Email

team@stack-auth.com

Registration

Registrar

Cloudflare, Inc.

Created

2024-04-12

Expires

2027-04-12 327 days left

Updated

2026-03-13

Name servers

colin.ns.cloudflare.com
ivy.ns.cloudflare.com

DNS records live

NS

colin.ns.cloudflare.com
ivy.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=rphWXhxfmrlscr0szVNf-9HKyeeCIveWr07029PHC8Q
rippling-domain-verification=2f2bc1b3ad2dd613
google-site-verification=qy4ua1zsgWtjhO75bcsMhsR9-QvVdoS1aMYB3BFAr6o

Email authentication strong

SPF

v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com -all

strict (-all)

DMARC

v=DMARC1;  p=reject; rua=mailto:3aad6c931fc44d8ba7604f7ffd456da9@dmarc-reports.cloudflare.net,mailto:d2b9510bd0834f94b80d58e7e1a27f16@dmarc-reports.cloudflare.net

policy: reject (enforced)

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnQrEYxrywGCa1+YTP7qUfkidJTMzAdUj4v/1KbtzLZ6ISoCz8Szgh+oc+XFwqNy26PoAmfl8sdMUIF…

selectors probed

Certificate (current)

R12

from 2026-04-24 to 2026-07-23

Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://stack-auth.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