indexo.dev

sigmabrowser.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 3802 ms crawled 2026-05-19

US · 198.202.211.1 · AS209242 Cloudflare London, LLC

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Sigma Private AI Browser
Description
Sigma is a free private AI browser with built-in AI agent, local AI, and ad blocker. Fast, secure browsing with full privacy and no tracking.
Language
en
Canonical
https://www.sigmabrowser.com

Open Graph

title
Sigma — Private AI Browser with Local AI
description
Sigma is a private AI browser with a built-in AI agent, local AI, and full privacy by default.

Technology

CDN
Cloudflare
Fonts
  • Google Fonts
Third-party hosts loaded (7)
  • cdn.prod.website-files.com×70
  • cdnjs.cloudflare.com×4
  • cdn.jsdelivr.net×2
  • ajax.googleapis.com×1
  • d3e54v103j8qbb.cloudfront.net×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1

Social

Contact

Email

Registration

Registrar
NameCheap, Inc.
Created
2024-05-27
Expires
2027-05-27 372 days left
Updated
2026-04-27
Name servers
  • frank.ns.cloudflare.com
  • tiffany.ns.cloudflare.com

DNS records live

NS
  • frank.ns.cloudflare.com
  • tiffany.ns.cloudflare.com
MX
Show 6 MX records
  • 1 smtp.google.com
  • 10 eforward1.registrar-servers.com
  • 10 eforward2.registrar-servers.com
  • 10 eforward3.registrar-servers.com
  • 15 eforward4.registrar-servers.com
  • 20 eforward5.registrar-servers.com
TXT
Show 4 TXT records
  • brevo-code:15e1ca8383046a6ff1a073edfd9bcf2d
  • google-site-verification=edsw8me047tF9Wy1w6hPn8gogAecu0zKWdsZMudTMwg
  • google-site-verification=zCdfFqMeeXTMXQyOgcpkwu3ta51ksTXBOqRcuEvRGAg
  • mandrill_verify.plv-IOjFhMjIDvLsv4tHwQ

Email authentication partial

SPF
v=spf1 include:spf.efwd.registrar-servers.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
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://www.sigmabrowser.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=31536000

Links to (5)

Linked from (2)