indexo.dev

dealsletter.io

.io crawl

First seen 2026-05-31 · Last seen 2026-05-31 · ok HTTP/1.1 200 206 ms crawled 2026-05-31

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Dealsletter — AI-Native Real Estate Underwriting | Dealsletter
Description
The terminal for real estate investors. Enter any address and get cap rate, cash flow, 5-year ROI, and a narrative written by three frontier models.
Language
en

Open Graph

url
https://dealsletter.io
title
Dealsletter — AI-Powered Real Estate Investment Analysis
locale
en_US
site name
Dealsletter
description
Analyze any real estate deal in 30 seconds. Cap rate, cash flow & ROI powered by Claude, GPT-4o & Grok 3.

Technology

CDN
Vercel
CMS
Next.js
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

DNS records live

NS
  • dns1.registrar-servers.com
  • dns2.registrar-servers.com
MX
  • 1 smtp.google.com

Email authentication weak

SPF
not published
DMARC
v=DMARC1; p=none; rua=mailto:reports@dealsletter.io
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-23 to 2026-08-21
Expires in 79 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.dealsletter.io/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
camera=(), microphone=(), geolocation=(self), interest-cohort=()
x-content-type-options
nosniff
content-security-policy
default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://maps.googleapis.com https://js.stripe.com https://va.vercel-scripts.com; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' data: blob: https://maps.googleapis.com https://maps.gstatic.com https://images.unsplash.com https://*.googleusercontent.com https://*.stripe.com; font-src 'self' https://fonts.gstatic.com; connect-src 'self' https://*.supabase.co wss://*.supabase.co https://api.stripe.com https://maps.googleapis.com https://api.rentcast.io https://va.vercel-scripts.com; frame-src https://js.stripe.com https://hooks.stripe.com; object-src 'none'; base-uri 'self'; form-action 'self'; plugin-types 'none'; upgrade-insecure-requests
strict-transport-security
max-age=63072000; includeSubDomains; preload

Linked from (1)