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https://berkeley.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
81
GRADE
B
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 2 REVIEW 1 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 301 Expected: 301 redirect to HTTPS

www / non-www

200https://www.berkeley.edu/
200https://berkeley.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://berkeley.edu/ → http://www.berkeley.edu/

HTTP version does not redirect to HTTPS

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
31 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

31
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
2 A records, 487 ms lookup
PASS
2 A records, 487 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 141.193.213.20, 141.193.213.21
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: adns1.berkeley.edu, adns2.berkeley.edu, adns3.berkeley.edu
Info::
5 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 (487 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 487 ms
A141.193.213.20, 141.193.213.21
AAAA—
CNAME—
NSadns1.berkeley.edu, adns2.berkeley.edu, adns3.berkeley.edu
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
google-site-verification=R5hbazPMfJqtXtm6OHprlDpBnSThQvYDrt-i-IqZvjE
atlassian-domain-verification=RIwGoMGAwFoHKm3AJg0bhFvuzEkRseqI6LStzthTqt4dWfA6Mq...
google-site-verification=CDuttEoV44OF0dD7qwidnTj3wvYxIPz05W6MKEZfKYc
sending_domain102272=da1fdb1bce80fcb235c498ec3ad47745fed6ea7c6dc03752d88318531e6...
brevo-code:e1e8345a4a2352cdbd9d6979093f2aec
MS=ms37758698
klaviyo-site-verification=SWYLuM
MS=10BE0CF63C8BD5AFF9A6EF7B71763B098A905719
brevo-code:a2b2aef0282cf9caec92be7bed7630ad
google-site-verification=loQrJWyMsMB249uINb-AsRGTWVoLdTc44Td3aMGn-NE
iContact1583632
docusign=25bb9bc1-b377-48ce-a907-61472fca6261
iContact1393487
ZOOM_verify_RirbP7N1QWC3Zzm02oL4Cw
google-site-verification=fL93jj-VPnl_5wdFDh26YshzKVPraWAurHaBCu-k-Xw
amazonses:IuakF7FVH1Y7h0Kap7krqHwRvoXFOzSET+Ri1VBHziA=
jamf-site-verification=2jicltwxCxH93ep4OhO0dA
docusign=31f4475e-737f-4a3a-b6ea-60b1ac273c95
brevo-code:ee0b01818d57850991280d3999efc841
896263912-18360412
adobe-idp-site-verification=a113c870-3c49-4b4a-b3a4-31e1cf1860cb
google-site-verification=C4YkQW0t-gtD5FpVWdjxAipEUofVb2p0KmW3xFaUJeA
SPF v=spf1 include:_spf.berkeley.edu include:_spf2.berkeley.edu include:_spf.google....
MS=ms19521665
apple-domain-verification=ZDtApcKYPmKfYxn4
iContact1462072
CAALookup not available with standard resolver
Resolved in 487 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
1 redirect(s), 458 ms total
PASS
1 redirect(s), 458 ms total
Info::
Single redirect
Got: https://berkeley.edu → https://www.berkeley.edu/ (301)
Info::
WWW normalization redirect

https://berkeley.edu

234 ms · HTTP/1.1

301

https://www.berkeley.edu/

224 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://berkeley.edu301234 msHTTP/1.1cloudflare
2https://www.berkeley.edu/200224 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 6 URLs
PASS
robots.txt present, sitemap with 6 URLs
Info::
robots.txt is present
Got: 190 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 6 entries
Info::
Sitemap index with 6 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 190 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
Crawl-delay: 10
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://www.berkeley.edu/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK
sitemap.xml 200 OK
Type Sitemap Index URLs 6 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
berkeley.edu — 41 years, 6 months old, hosted on Cloudflare
PASS
berkeley.edu — 41 years, 6 months old, hosted on Cloudflare
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Info::
Hosting: Cloudflare
Got: AS209242
Domain expiry

383 days

July 31, 2027

SSL certificate

31 days

Issued by Google Trust Services

Domain age

41 years, 6 months

Registered April 24, 1985

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Cloudflare

ASN AS209242

141.193.213.21

Registrar

Registrar unknown

Lock status unknown 3 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created April 24, 1985 (41 years, 6 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated January 13, 2026
Name Servers adns2.berkeley.edu, adns3.berkeley.edu, adns1.berkeley.edu
Registrant University of California at Berkeley
Hosting
IP Address 141.193.213.21
ASN AS209242 (CLOUDFLARESPECTRUM Cloudflare, Inc., US)
Provider Cloudflare
Data source: whois (0.6s)
A
HTTP Probe Timing
Total 413 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
168 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
7 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
413 ms
Total Time Total request time from DNS lookup through full response.
414 ms

Connection waterfall

DNS Lookup 168 ms TCP Connect 1 ms TLS Handshake 7 ms Server Processing 236 ms Content Transfer 0 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: MAD)
Got: cf-ray: 9ed502444acb0284-MAD
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9ed502444acb0284-MAD
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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