indexo.dev

bigmail.app

.app crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 167 ms crawled 2026-05-19

US · 104.21.91.17 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Big Mail
Language
en

Open Graph

title
Big Mail
description
A fresh new email experience design for iOS and macOS.

Technology

CDN
Cloudflare

Social

DNS records live

NS
  • fred.ns.cloudflare.com
  • michelle.ns.cloudflare.com
MX
  • 10 in1-smtp.messagingengine.com
  • 20 in2-smtp.messagingengine.com

Email authentication weak

SPF
v=spf1 include:spf.messagingengine.com ?all
neutral (?all)
DMARC
not published
DKIM
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvmHf2QqP/5hRcUXielwPdEeh1NjRNBOz40k6PoaTuvGcOXnti12FwbmMPirRJf8hX252f6lG3Se1MLAjRl…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkw4G54HH1NZWAa5ua8wLBwtvA53slOI5jvb0TkqK2EAHGrxdHTB1Vzb9hYjE/7+HQbuPbPKw5qPIlp8FRi…
selectors probed

Certificate (current)

WE1
from 2026-04-24 to 2026-07-23
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://bigmail.app/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (1)