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https://stonybrook.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
0
REVIEW
4
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 4 REVIEW
B
Redirect Chain
1 redirect(s), 1220 ms total
REVIEW
1 redirect(s), 1220 ms total
Info::
Single redirect
Got: https://stonybrook.edu → https://www.stonybrook.edu/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1220 ms total
Got: 1220 ms

https://stonybrook.edu

545 ms · HTTP/1.1

301

https://www.stonybrook.edu/

675 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://stonybrook.edu301545 msHTTP/1.1cloudflare
2https://www.stonybrook.edu/200675 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 1342 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 1342 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /globality/HansenGSJ78StagingArea/
Disallow: /ugrdbulletin/2009-11/fall2009/index.shtml
Disallow: /ugrdbulletin/2007-09/spring2009/index.shtml
Disallow: /ugrdbulletin/2007-09/fall2008/index.shtml
Disallow: /ugrdbulletin/2007-09/spring2008/index.shtml
Disallow: /ugrdbulletin/2007-09/fall2007/index.shtml
Disallow: /ugrdbulletin/2007-09/print/index.shtml
Disallow: /ugrdbulletin/2005-07/spring2007/index.shtml
Disallow: /ugrdbulletin/2005-07/fall2006/index.shtml
Disallow: /ugrdbulletin/2005-07/spring2006/index.shtml
Disallow: /ugrdbulletin/2005-07/fall2005/index.shtml
Disallow: /ugrdbulletin/2005-07/print/index.shtml
Disallow: /hsc-bulletin/
Disallow: /test/
Disallow: /tools/
Disallow: /top-stories-2015/index-dev.php
Disallow: /mobile/
Disallow: /request-assistance/
Disallow: /faculty-directory/
Disallow: /analytics/
Disallow: /thank-you/
Disallow: /tutorials/
Disallow: /shared/
Disallow: /resources/
Disallow: /plugins/
Disallow: /elements/
Disallow: /tools/
Disallow: /_archive/
Disallow: /commcms/_archive/
Disallow: /_test/
Disallow: /commcms/_test/
Disallow: /_old/
Disallow: /commcms/_old/
Disallow: /commcms/grad/_resources/
Disallow: /web-transition/
Disallow: /_resources/
Disallow: /_resources
Disallow: /_showcase/
Disallow: /_testing/
Disallow: /_testing
Disallow: /_training/
Disallow: /_training
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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.stonybrook.edu/
200https://stonybrook.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://stonybrook.edu/ → https://stonybrook.edu/

Consistent

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

Certificate validity

63
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, 598 ms lookup
PASS
2 A records, 598 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.64.155.133, 104.18.32.123
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:4400::ac40:9b85, 2606:4700:440b::6812:207b
Info::
3 nameserver(s) configured
Got: mewho.stonybrook.edu, nocnoc.stonybrook.edu, whoisthere.stonybrook.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 (598 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 598 ms
A172.64.155.133, 104.18.32.123
AAAA2606:4700:4400::ac40:9b85, 2606:4700:440b::6812:207b
CNAME—
NSmewho.stonybrook.edu, nocnoc.stonybrook.edu, whoisthere.stonybrook.edu
MX
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
TXT
adobe-idp-site-verification=9048249202877f48cf8d11aa971eadcfc0df2c427fd2a4dac051...
cisco-ci-domain-verification=36361ef9ebe8ba0e92e675f5bb432320d58386845ead3a78c0f...
brevo-code:07bbd259519029043e275ad4a19a6314
apple-domain-verification=4vLn25RFqMJUpfa4
jamf-site-verification=etsLVC-OyNyKWSXh9do49Q
e2ma-verification=ydofb
e2ma-verification=xwgcb
6tdqcquubastljdu0eanfijmme
e2ma-verification=ffgcb
e2ma-verification=db2eb
H25T22IAU87I5IVGXEYS77G5QMD8X2C71X47GG9NE
mandrill_verify.BXi5qSADJGeILtG8zCf7Fw
e2ma-verification=fd4eb
apple-domain-verification=s4tdkV2seP6M8zMb0sJMvlw6sk8fOsaVhKsanSmugZ4
SPF v=spf1 mx ip4:129.49.122.176 ip4:129.49.2.5 ip4:129.49.23.210 ip4:129.49.23.211 ...
docusign=dae2f7a0-8292-4af9-950d-47509f47d841
sending_domain1119773=42b39d55b55ae591745a69c8c4a4d9cf1b7fba60ac9b0c824ecb8d9e78...
workplace-domain-verification=9258b73f-dd16-4a86-b1fb-6c15c818b2df
e2ma-verification=luwbb
e2ma-verification=mz4cb
docusign=cc38e9b3-a351-48fe-b1e6-e3be660f5ef9
google-site-verification=Gxr4tCXZoj89jPPAxepcQrT6bcdpuWsDqBYZuK5ryM4
status-page-domain-verification=n0vpmzf7qttp
e2ma-verification=hpnfb
duo_sso_verification=T7DZcH9yS1iIspgZnSDQUInT6YBDcJ9dTW6f5HxkWQ3Hx583iB3X5cwy2bW...
e2ma-verification=m14cb
google-site-verification=7D4xsTI9K41YwGJ7xvEmaENCliprxvh3atJpuUqdDb0
google-site-verification=mGSr3eUomzekDzfl3DI_yxKUiOxNmDZjCptpHBj6-jw
e2ma-verification=o3xcb
07bbd259519029043e275ad4a19a6314
e2ma-verification=kg4eb
bupqjgjopcnk3m9cg24ligtlnc
globalsign-domain-verification=v2GHubrtvy7gxK5ch_X4jvvdf4NCd0pLTxMYMRAE1h
e2ma-verification=y6ubb
pardot1119773=33266aeee8ef1c875487503a9b6d5d7eec6ecf782a9ccf4bc9eb5a9488078bf5
e2ma-verification=n71cb
e2ma-verification=150bb
MS=ms25227087
e2ma-verification=7b0cb
e2ma-verification=qzwbb
e2ma-verification=xq2eb
CAALookup not available with standard resolver
Resolved in 598 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+
IPv6 Readiness
IPv6 reachable (16 ms)
PASS
IPv6 reachable (16 ms)
Info::
IPv6 is configured and reachable at 2606:4700:4400::ac40:9b85, 2606:4700:440b::6812:207b
Got: 16 ms connect
IPv6 Ready
AAAA Records 2606:4700:4400::ac40:9b85, 2606:4700:440b::6812:207b Connection Reachable (16 ms)
A+
Domain Intelligence
stonybrook.edu — 30 years, 5 months old
PASS
stonybrook.edu — 30 years, 5 months old
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Domain expiry

412 days

July 31, 2027

SSL certificate

63 days

Issued by Google Trust Services

Domain age

30 years, 5 months

Registered April 29, 1996

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2606:4700:4400::ac40:9b85

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 29, 1996 (30 years, 5 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated July 5, 2024
Name Servers nocnoc.stonybrook.edu, mewho.stonybrook.edu, whoisthere.stonybrook.edu
Registrant State University of New York/Stony Brook
Hosting
IP Address 2606:4700:4400::ac40:9b85
Data source: whois (0.7s)
A
HTTP Probe Timing
Total 676 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
133 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
17 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
24 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
677 ms
Total Time Total request time from DNS lookup through full response.
677 ms

Connection waterfall

DNS Lookup 133 ms TCP Connect 17 ms TLS Handshake 24 ms Server Processing 504 ms Content Transfer 0 ms
A
CDN & Delivery
Cloudflare (DYNAMIC)
PASS
Cloudflare (DYNAMIC)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9f07cd0c3de1bb58-CDG
Info::
CDN cache status: DYNAMIC
CDN Detected: Cloudflare
Provider Cloudflare Cache Status DYNAMIC Evidence cf-ray: 9f07cd0c3de1bb58-CDG
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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