indexo.dev

duocircle.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1074 ms crawled 2026-05-18

US · 216.150.1.1 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
DuoCircle: Email infrastructure for organizations the incumbents won't engage with
Description
DuoCircle is a portfolio of specialized email products covering authentication, protection, delivery, and routing. About 90% of category-leader capability at roughly half the cost. Multi-region G2 Category Leader for DMARC Software. SOC 2 Type 2 since 2022. Email experts, not sales reps.
Language
en
Generator
duocircle-monorepo/3dac34d
Canonical
https://www.duocircle.com/
Feeds

Open Graph

url
https://www.duocircle.com/
title
DuoCircle: Email infrastructure for organizations the incumbents won't engage with
locale
en_US
site name
DuoCircle
description
DuoCircle is a portfolio of specialized email products covering authentication, protection, delivery, and routing. About 90% of category-leader capability at roughly half the cost. Multi-region G2 Category Leader for DMARC Software. SOC 2 Type 2 since 2022. Email experts, not sales reps.

Technology

CDN
Vercel
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • cloud.umami.is×1
  • www.googletagmanager.com×1

Social

Contact

Address
st CenterStatus© 2026

Registration

Registrar
Porkbun LLC
Created
2010-06-23
Expires
2028-04-18 699 days left
Updated
2023-03-13
Name servers
  • ns-1232.awsdns-26.org
  • ns-1629.awsdns-11.co.uk
  • ns-361.awsdns-45.com
  • ns-937.awsdns-53.net

DNS records live

NS
  • ns-1232.awsdns-26.org
  • ns-1629.awsdns-11.co.uk
  • ns-361.awsdns-45.com
  • ns-937.awsdns-53.net
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
Show 5 TXT records
  • wordpressorg-duocircle-verification
  • yahoo-verification-key=9ee7zcKuf5TRicgaTiJQtyRfLFjA3As4bBhXyAA4kjo=
  • _rr089m7ms3zi6b5uw1rwpcpidc05btw
  • ca3-550ecb9b41344780839d6745eef39988
  • site24x7-signals-domain-verification=08a383377bc5c8cf3c84b342c318a44f

Email authentication strong

SPF
v=spf1 include:_s00000026.autospf.email -all
strict (-all)
DMARC
v=DMARC1; p=reject; sp=reject; rua=mailto:duocircle.com.a@dmarcinput.com,mailto:3076454fbf@rua.easydmarc.us;ruf=mailto:duocircle.com.f@dmarcinput.com,mailto:3076454fbf@ruf.easydmarc.us; adkim=r; aspf=r; fo=1
policy: reject (enforced) · sp=reject
DKIM
Show 5 DKIM selectors
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAk6SkyvCftXxnjTRJeFVQj3o3r3DcStGnC4rh1cHm1SkXdtZkPyTPEgeHLseFZIpBjEUm1HySCzi8Ss…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuBkIs7Y3798NMcVSyPdot6ZurEjR7S3+/ugqfHyptA9M3fAxECBU2YF9XzbBA3anXl9+rg6t8Mqscdzq6r…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCRDQUedQCRrQWscy1F85u37XV30Y39ojLftq51HVKzntIj0+hPk33zaMSTj6gorE+PyIe6K7S1zZrwTYyrlVuzFv…
  • smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…
selectors probed

Certificate (current)

R12
from 2026-05-06 to 2026-08-04
Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://www.duocircle.com/

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
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
DENY
permissions-policy
camera=(), microphone=(), geolocation=(), payment=()
x-content-type-options
nosniff
content-security-policy
default-src 'self'; script-src 'self' 'unsafe-inline' https://www.googletagmanager.com https://www.google-analytics.com https://googleads.g.doubleclick.net https://www.googleadservices.com https://duo.freshchat.com https://cloud.umami.is; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' data: https:; font-src 'self' https://fonts.gstatic.com; connect-src 'self' https://www.googletagmanager.com https://www.google-analytics.com https://region1.google-analytics.com https://googleads.g.doubleclick.net https://duo.freshchat.com https://dns.google https://cloud.umami.is https://api-gateway.umami.dev; frame-src https://www.googletagmanager.com https://duo.freshchat.com; frame-ancestors 'self'; object-src 'none'; base-uri 'self'; form-action 'self'; upgrade-insecure-requests
strict-transport-security
max-age=63072000; includeSubDomains; preload

Links to (11)

Linked from (9)