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https://buffalo.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
302 Found
Checks
9
5 PASS 3 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.

B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 743 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 743 B Sitemaps referenced 0 User-agents Twitterbot, facebot, facebookexternalhit, bingbot, * Blocking No — crawling allowed
User-agent: Twitterbot
Disallow: /content/demo/

User-agent: facebot
Disallow: /content/demo/

User-agent: facebookexternalhit
Disallow: /content/demo/

User-agent: bingbot
Disallow: /studentlife/get-involved/search.html

User-agent: *
Disallow: /content/demo/
Disallow: /content/demo.html
Disallow: /content/demo-m/
Disallow: /content/demo-m.html
Disallow: /content/shared/
Disallow: /content/www/accessibility-test/
Disallow: /content/dental/faculty/home.html
Disallow: *CFC__target=*
Disallow: *tag=*
Disallow: /search/*query=*
Disallow: /people/
Disallow: *start=*start=*
Disallow: /ubnow/stories/2024/10/nsf-engines.html
Disallow: /news.host.html/content/shared/university/news/ub-reporter-articles/stories/2024/10/nsf-engines.detail.html
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::
HTTP version does not redirect to HTTPS
Got: HTTP 302 Expected: 301 redirect to HTTPS

www / non-www

403https://www.buffalo.edu/
200https://buffalo.edu/

HTTP → HTTPS

302http://buffalo.edu/ http://www.buffalo.edu/

HTTP version does not redirect to HTTPS

B
TLS Certificate Expiry & Recommendations
111 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

111
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
  • 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
1 A records, 121 ms lookup
PASS
1 A records, 121 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 128.205.201.56
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2620:cc:8000:1840::80cd:c938
Info::
4 nameserver(s) configured
Got: dns04.buffalo.edu, dns03.buffalo.edu, dns02.buffalo.edu, dns01.buffalo.edu
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: 121 ms
Got: 121 ms
A128.205.201.56
AAAA2620:cc:8000:1840::80cd:c938
CNAME
NSdns04.buffalo.edu, dns03.buffalo.edu, dns02.buffalo.edu, dns01.buffalo.edu
MX
10 buffalo-edu.mail.protection.outlook.com
TXT
atlassian-domain-verification=MkZYhebwVjRbwdq2KXekiaTx1hAqsomvh4g/2aDxhezl7VUjyn...
google-site-verification=BS4cHgAJV3XRyM7iinI3qPa8rbYyMNnApEZTGJ47-eg
d365mktkey=pud2cggqleyks9j9lz57oykr
k3LtAgef9iK2Q4KKRwExay7WEVqZz4lm14/nAr2FNvrMrOlCypRII7OKqJ98gMyDxfh+RgkahVplzKUf...
MS=ms65968459
SPF v=spf1 include:spf.protection.outlook.com include:%{i}._ip.%{h}._ehlo.%{d}._spf....
work-accounts-domain-verification=TnMO9IZCN1iPkkalyNXrDARwDf54Bn
d365mktkey=2tzb4mzhil5p8yeft349rv4qh
MS=3F73ADE6CF91072185F2C66AE19C67B48DB8D80E
MUn/Y+E1lSEShSKdivy23KYHKi9oMnghK/h69K5eF+yOLsSzfnqVlRBdToJS2aF/SJ88O+lQQFgh1YCP...
intacct-esk=2D080F859996F2C1E06390068D0A5A40
adobe-idp-site-verification=37e8e578b1f9fbc29e8dd03208463057c9f7a6cf9069b2efb50b...
intacct-esk=FCFEF24B2E6AC7DDE0533A06690A0BC1
ciscocidomainverification=26cdc902cb9e8dea443538d1c7277fead9d421625323a80ba6f462...
CAALookup not available with standard resolver
Resolved in 121 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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
Redirect Chain
1 redirect(s), 596 ms total
PASS
1 redirect(s), 596 ms total
Info::
Single redirect
Got: https://buffalo.edu → https://www.buffalo.edu/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://buffalo.edu
Info::
Redirect overhead: 596 ms total
Got: 596 ms

https://buffalo.edu

440 ms · HTTP/1.1

302

https://www.buffalo.edu/

156 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://buffalo.edu302440 msHTTP/1.1Apache/2.4.37 (Oracle Linux Server) Communique/4.3.3 OpenSSL/1.1.1k
2https://www.buffalo.edu/200156 msHTTP/1.1Apache/2.4.37 (Oracle Linux Server) Communique/4.3.3 OpenSSL/1.1.1k

See the visual redirect chain in the HTTP Probe tab →

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

A+
IPv6 Readiness
IPv6 reachable (104 ms)
PASS
IPv6 reachable (104 ms)
Info::
IPv6 is configured and reachable at 2620:cc:8000:1840::80cd:c938
Got: 104 ms connect
IPv6 Ready
AAAA Records 2620:cc:8000:1840::80cd:c938 Connection Reachable (104 ms)
A+
Domain Intelligence
buffalo.edu — 31 years, 3 months old
PASS
buffalo.edu — 31 years, 3 months old
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Domain expiry

410 days

July 31, 2027

SSL certificate

111 days

Issued by Internet2

Domain age

31 years, 3 months

Registered June 15, 1995

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2620:cc:8000:1840::80cd:c938

Registrar

Registrar unknown

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created June 15, 1995 (31 years, 3 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated November 11, 2025
Name Servers dns04.buffalo.edu, dns01.buffalo.edu, dns03.buffalo.edu, dns02.buffalo.edu
Registrant State University of New York at Buffalo
Hosting
IP Address 2620:cc:8000:1840::80cd:c938
Data source: whois (0.6s)
A
HTTP Probe Timing
Total 542 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
107 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
105 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
223 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
543 ms
Total Time Total request time from DNS lookup through full response.
543 ms

Connection waterfall

DNS Lookup 107 ms TCP Connect 105 ms TLS Handshake 223 ms Server Processing 108 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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