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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
4 PASS 4 REVIEW 1 FIX
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
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.uci.edu/
200https://uci.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://uci.edu/ → https://uci.edu:443/

Consistent

B
HTTP Probe Timing
Total 1435 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
167 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
181 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
362 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
1.08 s
Total Time Total request time from DNS lookup through full response.
1.44 s

Connection waterfall

DNS Lookup 167 ms TCP Connect 181 ms TLS Handshake 362 ms Server Processing 364 ms Content Transfer 360 ms
B
TLS Certificate Expiry & Recommendations
64 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

64
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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
2 A records, 910 ms lookup
PASS
2 A records, 910 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 44.237.37.40, 52.33.114.235
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns5.service.uci.edu, ns6.service.uci.edu
Info::
2 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
Warning::
DNS resolution is slow (910 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 910 ms
A44.237.37.40, 52.33.114.235
AAAA—
CNAME—
NSns5.service.uci.edu, ns6.service.uci.edu
MX
10 mxb-004d1a01.gslb.pphosted.com
10 mxa-004d1a01.gslb.pphosted.com
TXT
sending_domain1057173=1c8b230ad3bd410b675eaa823f919f02b14a91d36b032f2085a0424431...
SPF v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ?all
canva-site-verification=liAVim1I_tDfK3pH9U75LA
00D0b000000C027=1TBa600000000jB
00D61000000avM8=1TBVt00000006HL
1password-site-verification=LHWNNSQHIZC7RNZX2NZB22EDMU
Ga28ym9RjoJjoEi+DUw4gBn+b3084cCMsLXkaVixWuVA7Rd1ECfKp/RV1N2GdUkF2X0cZxD+IABPnPhZ...
atlassian-domain-verification=RohmxL9BuytcJuMXhQ4a3GtrcjkHxdVrbBm/eeC3hEKh/2WCFH...
onetrust-domain-verification=16edbc3629f443fabd8dad950895f34d
apple-domain-verification=tBd62mzRvqFsLjGW
questionpro-mail=CBePcVGAudOwIUtT8-Qx9A
adobe-idp-site-verification=e634b61755f2851d70b1bfeb647e5cee36969dc9a85652085614...
autodesk-domain-verification=PZ4S1jFfL0rSV93udTJs
e2ma-verification=g3hfb
onetrust-domain-verification=a8268e233f9b4fa4a2255edb5c5d5b7a
00DWC00000C2NBJ=1TBWC0000000JsH
onetrust-domain-verification=b1f5d71b7a2b4617b22a4d8b5a985828
docusign=0b7a8853-5bde-42d6-a067-d1480753eaef
canva-site-verification=ahsq18bSu1cI0z5w_ow0Og
dtm-domain-verification=UhoBGKuQN8Siq9K9fHrDQqZE1hISUyZWup7kwR2t_QQ
atlassian-domain-verification=L7pbDBawzhiLTdrBwr0zxLz5BZm94xsJ0Zr8IOpZlCSIKKSB/H...
pardot1057173=fb2df7b7fe6de55622127ff44a9805f88555f57e824bd7fd91b2ea87fb97b7e2
CAALookup not available with standard resolver
Resolved in 910 ms

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.

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://uci.edu

https://uci.edu

898 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://uci.edu200898 msHTTP/1.1Apache/2.4.66 () mod_auth_kerb/5.4
A
Crawlability
no robots.txt, sitemap with 38 URLs
PASS
no robots.txt, sitemap with 38 URLs
Info::
No robots.txt found
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 38 entries

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.

Learn more ▾

A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.

Source: robotstxt.org

robots.txt No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

sitemap.xml 200 OK
Type URL Set URLs 38 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
uci.edu — 41 years, 1 months old, hosted on AWS
PASS
uci.edu — 41 years, 1 months old, hosted on AWS
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: AWS
Got: AS16509
Domain expiry

16 days

July 31, 2026

SSL certificate

64 days

Issued by Amazon

Domain age

41 years, 1 months

Registered September 30, 1985

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

44.237.37.40

Registrar

Registrar unknown

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
Registrar
Created September 30, 1985 (41 years, 1 months ago)
Expires July 31, 2026 (3 months)
Last Updated July 7, 2025
Name Servers ns6.service.uci.edu, ns5.service.uci.edu
Registrant University of California, Irvine
Hosting
IP Address 44.237.37.40
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.8s)
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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