sigma.org
HTML metadata
Technology
- CDN
- Cloudflare
- CMS
- WordPress
- Analytics
-
- Google Tag Manager
- Fonts
-
- Google Fonts
Third-party hosts loaded (6)
- fonts.googleapis.com×5
- www.google.com×2
- fonts.gstatic.com×1
- gmpg.org×1
- www.googletagmanager.com×1
- www.gstatic.com×1
Social
Contact
- Phone
Registration
- Registrar
- Network Solutions, LLC
- Created
- 1997-03-14
- Expires
- 2027-03-15 300 days left
- Updated
- 2026-01-19
- Name servers
-
- gordon.ns.cloudflare.com
- nancy.ns.cloudflare.com
DNS records live
- NS
-
- gordon.ns.cloudflare.com
- nancy.ns.cloudflare.com
- MX
-
- 0 sigma-org.mail.protection.outlook.com
- TXT
-
Show 4 TXT records
b7hks6im866uurl8q6a92s85r1shnm82724ad67pa7q51d90a1mq8p3io0m85fju74hupl8th8f66h8ts2jldejj6c4fr3t06mo4vcre
Email authentication strong
- SPF
-
v=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com include:spf.aristotle.com ip4:207.97.230.39 ip4:207.97.230.13 -allstrict (-all) - DMARC
-
v=DMARC1; p=nonepolicy: none (monitoring only) - DKIM
- no key found at common selectors
Certificate (current)
WE1
Expires in 65 days
HTTP security headers
- present
-
- content-security-policy
- findings
-
- missing HSTS
- missing frame protection
- missing content type protection
- missing Referrer Policy
- missing Permissions Policy
Header values
- content-security-policy
upgrade-insecure-requests