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Gridlode
Rank #5,852Updated November 10, 2026

cncf.io

Cloud Native Computing Foundation

The site runs on WordPress, webpack, Varnish and 11 other technologies. Its email security grade is C. Its SSL certificate is issued by Let's Encrypt and is valid for 47 more days.

Domain age
—
Technologies
14
Email security
C
SSL days left
47

DNS records

TypeValueTTL
A23.185.0.360
MXaspmx.l.google.com 1300
MXalt1.aspmx.l.google.com 5300
MXalt2.aspmx.l.google.com 5300
MXalt3.aspmx.l.google.com 10300
MXalt4.aspmx.l.google.com 10300
NSns1.dnsimple-edge.com3600
NSns2.dnsimple-edge.net3600
NSns3.dnsimple-edge.io3600
NSns4.dnsimple-edge.org3600
TXTatlassian-domain-verification=hJowEz6/zBHgzz3jX4VphZ1649hJKuNoOXFYWYbD2qVEnNocFYHQQPpqP4+7YfbJ60
TXTv=spf1 include:_spf.google.com include:email.influitive.com include:8112310.spf10.hubspotemail.net include:spf.infosalons.com.cn -all60
TXTgoogle-site-verification=SmMiDwGXXq-mW2Pl9FSpFHJlDpfsNd0pLIp3VM44pMM300
TXTgoogle-site-verification=t_KSqbHjvvmFkrb1x7osoE0KA3Imv4r6VAY0N0DUJT43600
AAAA2620:12a:8000::360
AAAA2620:12a:8001::360

Technology stack

Build tool
webpack
Cache
Varnish
CDN
Fastly
CMS
WordPress
Hosting
Pantheon
JavaScript library
jQuerySlick
Marketing automation
HubSpot
Monitoring
New Relic
Programming language
PHP
Security
Content Security PolicyHSTS
Tag manager
Google Tag Manager
Web server
Nginx

Analytics and advertising IDs

google_tag_manager:GTM-KNXFWV

SSL certificate

ValidValid
IssuerUS, YR1, Let's Encrypt
ExpiresDecember 27, 2026
Days remaining47
ProtocolTLSv1.3
Namescncf.io, www.cncf.io

Email security

CScore 65/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • goodDKIM keys found (selector: google).
  • good5 MX record(s) found. Mail is handled by Google Workspace.

Homepage metadata

TitleCloud Native Computing Foundation
DescriptionCNCF is the vendor-neutral hub of cloud native computing, dedicated to making cloud native ubiquitous.
Languageen-US
Canonicalhttps://www.cncf.io/
Structured dataWebSite, WebPage, Organization
IndexableYes
Word count1304

About cncf.io

What technology does cncf.io use?

We detected 14 technologies on cncf.io, including webpack, Varnish, Fastly, WordPress, Pantheon, jQuery.

Does cncf.io protect its email with SPF and DMARC?

cncf.io scores 65/100 (grade C) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.

What are the name servers of cncf.io?

cncf.io uses ns1.dnsimple-edge.com, ns2.dnsimple-edge.net, ns3.dnsimple-edge.io, ns4.dnsimple-edge.org.