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https://rit.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Singapore, Singapore
301 Moved Permanently
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.

B
Redirect Chain
1 redirect(s), 1817 ms total
REVIEW
1 redirect(s), 1817 ms total
Info::
Single redirect
Got: https://rit.edu → https://www.rit.edu/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1817 ms total
Got: 1817 ms

https://rit.edu

675 ms · HTTP/1.1

301

https://www.rit.edu/

1141 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://rit.edu301675 msHTTP/1.1Apache
2https://www.rit.edu/2001141 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

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.rit.edu/
200https://rit.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://rit.edu/ → https://www.rit.edu/

Consistent

B
HTTP Probe Timing
Total 932 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
242 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
226 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
238 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
932 ms
Total Time Total request time from DNS lookup through full response.
932 ms

Connection waterfall

DNS Lookup 242 ms TCP Connect 226 ms TLS Handshake 238 ms Server Processing 226 ms Content Transfer 0 ms
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
1 A records, 1419 ms lookup
PASS
1 A records, 1419 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 129.21.1.40
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: 2620:8d:8000:0:aba:ca:daba:217
Info::
3 nameserver(s) configured
Got: ns1a.rit.edu, ns2a.rit.edu, accuvax.northwestern.edu
Info::
9 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 (1419 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1419 ms
A129.21.1.40
AAAA2620:8d:8000:0:aba:ca:daba:217
CNAME—
NSns1a.rit.edu, ns2a.rit.edu, accuvax.northwestern.edu
MX
5 mx03c-in01r.rit.edu
5 mx03f-in01r.rit.edu
5 mx03a-in01r.rit.edu
5 mx03d-in01r.rit.edu
5 mx03b-in01r.rit.edu
5 mx03g-in01r.rit.edu
5 mx03h-in01r.rit.edu
5 mx03e-in01r.rit.edu
5 mx03t-in01r.rit.edu
TXT
SPF v=spf1 mx ip4:129.21.10.0/25 ip4:129.21.10.128/25 ip4:104.47.0.0/17 ip4:129.21.1...
openai-domain-verification=dv-aeuaxT88QLFaKvJCzy4WAoHu
anthropic-domain-verification-2qymnt=MTntd4DgL6YyEaHbJUf5FKGqk
atlassian-domain-verification=NYxaPJDKpS55ZcaM43zoIiTTcT16jWHscH8MZpNTXzX0LCPs7n...
hpe-greenlake-domain-verification=4b563844396f43496e68564b446f7776694a7064515930...
CAALookup not available with standard resolver
Resolved in 1419 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.

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 (209 ms)
PASS
IPv6 reachable (209 ms)
Info::
IPv6 is configured and reachable at 2620:8d:8000:0:aba:ca:daba:217
Got: 209 ms connect
IPv6 Ready
AAAA Records 2620:8d:8000:0:aba:ca:daba:217 Connection Reachable (209 ms)
A+
Crawlability
robots.txt present, sitemap with 13 URLs
PASS
robots.txt present, sitemap with 13 URLs
Info::
robots.txt is present
Got: 3309 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 13 entries
Info::
Sitemap index with 13 child sitemaps
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

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 3309 B Sitemaps referenced 0 User-agents SemrushBot, PetalBot, ClaudeBot, ChatGPT-User, SiteimproveBot, AHC/1.0, Baiduspider, WinHTTP Example/1.0, CCBot, *, RIT Storm Crawler, SemanticScholarBot, trendictionbot, GPTBot, Googlebot, SiteimproveBot-Crawler, AHC/2.0, Yandex, anthropic-ai, google, AHC/2.1 Blocking No — crawling allowed
#Add Robots Exclusion Commands for www below this line
User-agent: SemrushBot
Disallow: /

User-agent: SemanticScholarBot
Disallow: /

User-agent: PetalBot
Disallow: /

#Baiduspider
User-agent: Baiduspider
Disallow: /

#Yandex
User-agent: Yandex
Disallow: /

User-Agent: trendictionbot
Disallow: /

User-Agent: WinHTTP Example/1.0
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ChatGPT-User
Disallow: /

User-agent: GPTBot
Disallow: /


User-agent: *
Disallow: /study/business-administration-accounting-mba
Disallow: /study/computational-finance-ms
Disallow: /study/construction-management-ms
Disallow: /study/criminal-justice-ms
Disallow: /study/engineering-management-me
Disallow: /study/engineering-phd
Disallow: /study/entrepreneurship-and-innovative-ventures-ms
Disallow: /study/facility-management-ms
Disallow: /study/health-care-finance-adv-cert
Disallow: /study/health-informatics-ms
Disallow: /study/health-systems-management-ms
Disallow: /study/human-resource-development-ms
Disallow: /study/industrial-and-systems-engineering-me
Disallow: /study/integrative-design-ms
Disallow: /study/management-ms
Disallow: /study/media-arts-and-technology-ms
Disallow: /study/microelectronics-manufacturing-engineering-me
Disallow: /study/networking-and-systems-administration-ms
Disallow: /study/non-toxic-printmaking-adv-cert
Disallow: /study/print-and-graphic-media-science-ms
Disallow: /study/school-psychology-ms
Disallow: /study/school-psychology-adv-cert
Disallow: /study/service-leadership-and-innovation-ms
Disallow: /study/sustainable-engineering-ms
Disallow: /study/sustainable-engineering-me
Disallow: /study/telecommunications-engineering-technology-ms
Disallow: /study/applied-technical-leadership-bs
Disallow: /study/business-administration-international-business-bs
Disallow: /study/dietetics-and-nutrition-bs
Disallow: /study/electrical-mechanical-engineering-technology-bs
Disallow: /study/journalism-bs
Disallow: /study/mechatronics-engineering-certificate
Disallow: /study/new-media-marketing-bs
Disallow: /study/print-and-graphic-media-technology-bs
Disallow: /study/public-policy-bs
Disallow: /study/quality-management-certificate
Disallow: /study/web-and-mobile-computing-bs
Disallow: /study/curriculum/
Disallow: /commencement/book/
Disallow: /academicaffairs/commencement/book/
Disallow: /cos/satoshi-takahashi
Disallow: /cos/old
Disallow: /directory*
Disallow: /ntid/educationalmaterials
Disallow: /cla/modernlanguages/
Disallow: /blog/
Disallow: /its/old
Disallow: /its/new
Disallow: /dubai/new
Disallow: /dubai/old
Disallow: /facilitiesmanagement/buildings-maps
Disallow: /facilitiesmanagement/building*

#allow the RIT Stormcrawler and Google
User-agent: RIT Storm Crawler
User-agent: Googlebot
User-agent: google
Disallow: /ntid/educationalmaterials
Disallow: /controller/newsite

#allow the Siteimprove crawler
User-agent: SiteimproveBot
Disallow:
User-agent: SiteimproveBot-Crawler
Disallow:

User-agent: AHC/1.0
Disallow: /
User-agent: AHC/2.0
Disallow: /
User-agent: AHC/2.1
Disallow: /

#Removal of /~w-* URLS from search indexes
#We can't do this globally, since many sites are broken and use these URLs publically
Disallow: /~w-home/
Disallow: /~w-oce/
Disallow: /~pltw/
Disallow: /~w-cosold/
sitemap.xml 200 OK
Type Sitemap Index URLs 13 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
rit.edu — 38 years, 6 months old
PASS
rit.edu — 38 years, 6 months old
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Domain expiry

410 days

July 31, 2027

SSL certificate

31 days

Issued by Internet2

Domain age

38 years, 6 months

Registered April 21, 1988

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2620:8d:8000:0:aba:ca:daba:217

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 21, 1988 (38 years, 6 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated May 2, 2025
Name Servers ns1a.rit.edu, ns2a.rit.edu, accuvax.northwestern.edu
Registrant Rochester Institute of Technology
Hosting
IP Address 2620:8d:8000:0:aba:ca:daba:217
Data source: whois (1.1s)
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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