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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
81
GRADE
B
FIX
2
REVIEW
2
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 2 REVIEW 2 FIX
D
Redirect Chain
Action
2 redirect(s), 1216 ms total
FIX
2 redirect(s), 1216 ms total
Warning::
2 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://segment.com/
Warning::
Redirect overhead: 1216 ms total
Got: 1216 ms
Info::
Cross-domain redirect detected

https://www.segment.com

531 ms · HTTP/1.1

301

https://segment.com/

511 ms · HTTP/1.1

302

https://www.twilio.com/en-us/segment

173 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.segment.com301531 msHTTP/1.1nginx
2https://segment.com/302511 msHTTP/1.1nginx
3https://www.twilio.com/en-us/segment200173 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
TLS Certificate Expiry & Recommendations
191 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

191
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A
DNS Records
3 A records, 117 ms lookup
PASS
3 A records, 117 ms lookup
Info::
Resolves to 3 IPv4 address(es)
Got: 100.22.97.185, 52.24.71.54, 34.216.129.148
Info::
No IPv6 (AAAA) records
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: segment.com
Info::
4 nameserver(s) configured
Got: ns-677.awsdns-20.net, ns-386.awsdns-48.com, ns-1681.awsdns-18.co.uk, ns-1205.awsdns-22.org
Info::
1 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 117 ms
Got: 117 ms
A100.22.97.185, 52.24.71.54, 34.216.129.148
AAAA
CNAMEsegment.com
NSns-677.awsdns-20.net, ns-386.awsdns-48.com, ns-1681.awsdns-18.co.uk, ns-1205.awsdns-22.org
MX
10 mxa-0023de01.gslb.pphosted.com
TXT
airtable-verification=cefc1f211f96a7ff87b65b078aee41ef
postman-domain-verification=c905e7bd410da4bbcb2c4e0e96b2b9d0f6657debb31e89940b26...
bugcrowd-verification=8bc91ead4bf9979f7de216191cf0e5d4
google-site-verification=zfo7ZoeOCTYZwn-jHOF5cruYlF4gPRN3Xkj7siYq9qw
atlassian-domain-verification=SC6fTWOj+nV9XC0dqcPNn6R+trRmss2Xl3spdpJuXh8wiwPPCe...
lucidchart-verification=aaXCRY7AWJr7Kk4WfHlH
gradle-verification=TMN4JP1P3UU40CCUOISLDHFIJGRM5
hubspot-dns-verification=hubspot-f5fe79ltusWe
google-site-verification=7mX1TXXSAxbOuAwPJsk7mmsmvSjVRds99CUaq_54-AQ
google-site-verification=PVuLPjqqhb3D1ZmWF_b0a68RvlwES1ouYYQFBDAcYPU
hubspot-developer-verification=MGM0MWQwNTYtM2MyOS00YTM5LTk5NTEtNjRhNmNhNmFhZGI1
docusign=135f3801-2dc6-4e71-acc1-12a337ea3dfb
atlassian-domain-verification=W7l5tMItTm4lNEq8QOucCxLdAbqWNuMG6fHGtkVrN1HsVvbh7E...
google-site-verification=pJBgQqPzyDub2n2wHk-5fQmcknlgf3gGwsFPoVNs4L8
google-site-verification=uyiHYCSsIa9TUR55Bby5YdIyZjDDiYQfRYH7giX5xns
drift-domain-verification=d5594829f85cebeb24146ac3b2ddf5560ae7f29b4a9c392c090276...
status-page-domain-verification=934c3wdf14l9
d7eba8c3-57b1-4dd6-b410-1e9efb1f28e7
google-site-verification=HpCnR5YyS21Rat8qk8rmeSWbtSq3Ft6VD-lag8TWiyE
SPF v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
MS=ms45041807
zapier-domain-verification-challenge=a2c5e2d0-bbe8-4d8c-ba54-95fdcb561986
d735d671-6fd6-4a9c-b02f-b1de48d84680
CAALookup not available with standard resolver
Resolved in 117 ms

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A+
Crawlability
robots.txt present, sitemap with 4 URLs
PASS
robots.txt present, sitemap with 4 URLs
Info::
robots.txt is present
Got: 661 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 4 entries
Info::
Sitemap index with 4 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 661 B Sitemaps referenced 4 User-agents * Blocking No — crawling allowed
# Algolia-Crawler-Verif: 7958130DB3AFAB0B

# *
User-agent: *
Allow: /
Disallow: /storybook/*
Disallow: /cdp-week-summer-edition/
Disallow: /segment-jsl/
Disallow: /demo-request-followup/
Disallow: /pdfs/
Disallow: /learn-segment-abm-industry/
Disallow: /learn-segment-abm-personal/
Disallow: /learn-segment-demo-request/
Disallow: /learn-segment-pmm/
Disallow: /learn-segment-voc-video-feature/
Disallow: /learn-segment-content-download/

# Host
Host: https://segment.com/

# Sitemaps
Sitemap: https://segment.com/sitemap.xml
Sitemap: https://segment.com/docs/sitemap.xml
Sitemap: https://segment.com/blog/sitemap.xml
Sitemap: https://segment.com/sitemap-1.xml

A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.segment.com/
302https://segment.com/

Preferred variant: www

HTTP → HTTPS

301http://www.segment.com/ https://www.segment.com:443/

Consistent

A
Domain Intelligence
segment.com — via MarkMonitor Inc., 28 years, 1 months old, hosted on AWS
PASS
segment.com — via MarkMonitor Inc., 28 years, 1 months old, hosted on AWS
Warning::
Domain expires in 88 days
Consider enabling auto-renewal to prevent accidental expiration.
Got: Expires Jul 5, 2026
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: MarkMonitor Inc.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

EXPIRED

July 5, 2026

SSL certificate

191 days

Issued by Amazon

Domain age

28 years, 1 months

Registered July 6, 1998

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

52.24.71.54

Registrar

MarkMonitor Inc.

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Domain has EXPIRED — renew immediately to avoid total site outage
  • Enable DNSSEC to protect visitors from DNS spoofing
Registrar MarkMonitor Inc.
Created July 6, 1998 (28 years, 1 months ago)
Expires July 5, 2026 (2 months)
Last Updated May 17, 2022
Name Servers ns-1205.awsdns-22.org, ns-1681.awsdns-18.co.uk, ns-386.awsdns-48.com, ns-677.awsdns-20.net
DNSSEC Not enabled
Hosting
IP Address 52.24.71.54
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.3s)

Consider enabling auto-renewal to prevent accidental expiration.

Why this matters

Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.

Source: ICANN renewal policy

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

A
HTTP Probe Timing
Total 563 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
53 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
169 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
171 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
564 ms
Total Time Total request time from DNS lookup through full response.
564 ms

Connection waterfall

DNS Lookup 53 ms TCP Connect 169 ms TLS Handshake 171 ms Server Processing 170 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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