indexo.dev

briefer.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-04 · ok HTTP/1.1 200 332 ms crawled 2026-05-07

US · 216.150.1.193 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Briefer - Time to close this book
Description
After years of sharing breakthrough ideas, Briefer is evolving into something new for our AI future.
Language
en

Technology

CDN
Vercel
CMS
Next.js

Registration

Registrar
GoDaddy.com, LLC
Created
1998-11-25
Expires
2026-11-24 189 days left
Updated
2024-12-02
Name servers
  • noah.ns.cloudflare.com
  • pam.ns.cloudflare.com

DNS records live

NS
  • noah.ns.cloudflare.com
  • pam.ns.cloudflare.com
MX
  • 1 route2.mx.cloudflare.net
  • 14 route3.mx.cloudflare.net
  • 67 route1.mx.cloudflare.net
TXT
  • google-site-verification=QyFtmtGbIZLW__SFrI6R_ehQPmpLgYhHE0TqpjFzr6I

Email authentication weak

SPF
v=spf1 include:_spf.mx.cloudflare.net ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-01 to 2026-07-30
Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://briefer.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

Linked from (1)