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circleci.com Paid content Multilingual

Categories: Artificial Intelligence

Deliver production-ready software at AI speed. CircleCI helps modern teams validate, test, and ship every change with intelligent automation.

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Updated: 2026-09-01 08:16 Language: English (default) Access: Normal

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CircleCI Full homepage screenshot

Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. Page metadata, canonical configuration and social previews work together to provide more consistent search and sharing presentation.

Domain and Registration

Registered in 2011, this domain has about 15 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .com extension, which is not an independent safety signal.

DNS and Email

The lowest TTL is 17 seconds, supporting rapid record changes at the cost of more frequent lookups. Nameservers are provided by Amazon Route 53, indicating managed DNS hosting. MX records point to the Proofpoint email service. No CNAME was found; the observed records resolve directly to addresses. SPF and DMARC are configured. DKIM status is unknown.

TLS and Certificates

The certificate uses an RSA 2048-bit public key, offering broad client compatibility. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued within the Amazon cloud or CDN ecosystem. The certificate is valid for about 394 days in total, with 156 days remaining.

HTTP and Browser Security

The response lacks these common security headers: CSP, Referrer-Policy, Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The x-cache, via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. No CORS permission header was found, so browsers normally restrict cross-origin script access.

Technology Stack Analysis

The public page identifies Google Tag Manager, Amazon CloudFront without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

Twitter Card metadata is configured. JSON-LD includes Organization data, helping describe the organization as an entity. The page declares 8 language or regional alternatives using hreflang. The title has 47 characters, within a common display range. A meta description is present, with 141 characters.

Hosting and Email

DNSAmazon Route 53
HostingAmazon CloudFront
EmailProofpoint
Location United States flagCalifornia, United States 18.155.202.104

Pages, Search and Sharing

Meta descriptionDeliver production-ready software at AI speed. CircleCI helps modern teams validate, test, and ship every change with intelligent automation.
Canonical URLhttps://circleci.com/
LanguageEnglish (default) · Multilingual
Twitter Cardsummary_large_image

Social Sharing Preview

7 fields

robots.txt (opens in a new tab)

13 rules
All bots 0 allowed · 7 disallowed
  • Disallow/?join=
  • Disallow/login
  • Disallow/github-login
  • Disallow/dashboard
  • Disallow/bitbucket-login/
  • Disallow/bitbucket-login
  • Disallow/api/
chatgpt-user 0 allowed · 0 disallowed
claude-user 0 allowed · 0 disallowed
perplexity-user 0 allowed · 6 disallowed
  • Disallow/?join=
  • Disallow/login
  • Disallow/github-login
  • Disallow/dashboard
  • Disallow/bitbucket-login/
  • Disallow/bitbucket-login

Sitemaps

12

Registration details RDAP / WHOIS

RegistrarAmazon Registrar, Inc.
Registered2011-09-01
Expires2027-09-01
Domain statusclient transfer prohibited
Nameserversns-1065.awsdns-05.org、ns-1572.awsdns-04.co.uk、ns-225.awsdns-28.com、ns-837.awsdns-40.net
DNSSECunsigned

DNS records

TypeNameValueTTLPriority
Acircleci.com18.155.202.10417—
Acircleci.com18.155.202.10517—
Acircleci.com18.155.202.11017—
Acircleci.com18.155.202.9917—
MXcircleci.commxa-00672001.gslb.pphosted.com180010
MXcircleci.commxb-00672001.gslb.pphosted.com180010
NScircleci.comns-1065.awsdns-05.org172800—
NScircleci.comns-1572.awsdns-04.co.uk172800—
NScircleci.comns-225.awsdns-28.com172800—
NScircleci.comns-837.awsdns-40.net172800—
TXTcircleci.com0rSSf1XYrVTQD0nx3uXSOqfLql67Dq7NHJxd7Bb4AEs=300—
TXTcircleci.comDC5E374380300—
TXTcircleci.comOSSRH-51450300—
TXTcircleci.comZOOM_verify_XxtkbTmXREqW-gC9oUt_JQ300—
TXTcircleci.comadobe-idp-site-verification=e62bdaaa6e859ff8bd5bf72625dbbd549c23f0de1fdb766235ef9e3040001e67300—
TXTcircleci.comanthropic-domain-verification-v8cdhs=P5CPYQkBtkjBPMgAZIvtut9zd300—
TXTcircleci.comapple-domain-verification=BkV5OZenVheGWVKC300—
TXTcircleci.comastro-domain-verification=cml9sndz92qqm01jm14o8nqho300—
TXTcircleci.comatlassian-domain-verification=9tj+F5NsRlmMKY+gbNLn4kP5OmRWYtiQbLcnIFwe3m4l+99gvwWJU5/vJ+3f0TOq300—
TXTcircleci.combox-domain-verification=5f46d2be1dbceca19facc856c1c495d1e542fc177dfd64eb9cce08de605c198a300—
TXTcircleci.comccisso=e9697c9a-798a-48ee-999e-44a7f9eab0a2300—
TXTcircleci.comclojars circleci_publish300—
TXTcircleci.comcursor-domain-verification-a9dwf3=OxECwMG1mvh1CATOVrwb3pTIH300—
TXTcircleci.comdocker-verification=a5aae3d9-5a74-4a9b-84ca-a0caf85dc170300—
TXTcircleci.comdocusign=589fcafb-1c84-47fe-8f13-d44a3e2dd30f300—
TXTcircleci.comdocusign=c1c3ad48-e560-44b7-aac2-8346a8d1391a300—
TXTcircleci.comdrift-domain-verification=94d102dfe9b1862190786ad91ec34c9fdf3ba2c3df200f764737ef6910f6cd0a300—
TXTcircleci.comdropbox-domain-verification=61pion11z5cz300—
TXTcircleci.comgoogle-site-verification=Au0NOifkJ4cu5d6kqPdT_9OIcwFB5h6fz2ukOZoP7vk300—
TXTcircleci.comgoogle-site-verification=qJEUKVfIUpbe-zTEIi4gPQVtsnlLeM7OTxNaoX7PE4s300—
TXTcircleci.comgoogle-site-verification=xr9hEMP_BBWxJl4yeVF4VxcM10bsmiwkEpj9kjAwujY300—
TXTcircleci.comhubspot-domain-verification=ZGQ2MmUyODQtYThiZS00MzY2LThkNzgtOGExZGQ0NThmNzk1300—
TXTcircleci.comjamf-site-verification=oCrw5U_C0gMbQ9FHF9cBjg300—
TXTcircleci.comlinear-domain-verification=2kxpiiq8whum300—
TXTcircleci.comlinear-domain-verification=552197300—
TXTcircleci.commgverify=bb6f143dedb85052f4ef1fc2f56d900e0a2a31c84d455f1733f674c1cb55069c300—
TXTcircleci.compostman-domain-verification=661eb35113cab90dacdcabce15edd74a59485f08f0fcb04a923821a067b397037396bc8392e4aea319d185f9f3d20a56c91683632563e1349f6b71e5030b1687300—
TXTcircleci.comsegment-site-verification=ZapQvl57wrmVzIVRTz5MXx3954FpmM4I300—
TXTcircleci.comsmithery-verification=ab306f64b814ed1bcd8098e69fd3f3fd2af0160e9dd1e1c4a4502f1030e728ba300—
TXTcircleci.comv=spf1 include:spf.circleci.com ~all300—
TXTcircleci.comvercel-domain-verification-xaean4=kWskeoBzY85dsnVpleteO4ju4300—
TXTcircleci.comvitally-domain-verification=ee393126-6828-4207-b56c-e4912cb10dde300—
DMARC_dmarc.circleci.comv=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]300—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectcircleci.com
IssuerAmazon
Valid until2027-02-04T23:59 · Remaining when checked: 156 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=UTF-8
cache-controlprivate, max-age=10
strict-transport-securitymax-age=63072000; includeSubDomains; preload
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff

Identified technologies

Google Tag ManagerAmazon CloudFront

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