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https://fiu.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
83
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Madrid, Spain
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), 1008 ms total
REVIEW
1 redirect(s), 1008 ms total
Info::
Single redirect
Got: https://fiu.edu → https://www.fiu.edu/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1008 ms total
Got: 1008 ms

https://fiu.edu

399 ms · HTTP/1.1

301

https://www.fiu.edu/

609 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://fiu.edu301399 msHTTP/1.1nginx
2https://www.fiu.edu/200609 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

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.fiu.edu/
200https://fiu.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://fiu.edu/ → https://fiu.edu/

Consistent

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

Certificate validity

178
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, 138 ms lookup
PASS
1 A records, 138 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 20.119.0.48
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: nameserver1.fiu.edu, nameserver3.fiu.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
Info::
DNS resolution time: 138 ms
Got: 138 ms
A20.119.0.48
AAAA—
CNAME—
NSnameserver1.fiu.edu, nameserver3.fiu.edu
MX
10 mxb-000c9b01.gslb.pphosted.com
10 mxa-000c9b01.gslb.pphosted.com
TXT
google-site-verification=9_1Yn5YkhPJEbAq-UtekfkXqyWtDInr-K711AbBZFc8
MJ_VFY=1b4137b01f8c9cf439a7b61f50ce3b61.txt
29qJiO+bQK+kHFYxpDgxdgFOe3Ntvkl9F5/XTF8SMUBD/ncQ6nBJznKme9u9QeXMd7AEDNizFjAl55+9...
docusign=9a8b4090-a4e0-4bf5-89b9-51803bbe0068
apple-domain-verification=Iw9OFxXG1BAbhMGx
d365mktkey=NmXoPTWveHEuA7SHlbJQsIX7ydWCDUeSXFOR0ckRuaEx
smartsheet-site-validation=E9mbFjjNj-O00tp3pVk7qOCkuwk7ZdR5
PDQ-639365
MS=ms29907523
cisco-ci-domain-verification=68b789cd932fadffdc221abf9213dcda915cbf5877f9c79dfda...
e2ma-verification=htjgb
d365mktkey=CPfexJD5lj8rvlr2XQ5WFHnzGHN2X3wrjU1vAUvRHwMx
yVF8e7pb4fivIFbbIn6jZD0ywwvV3RWVC6vAIlfJ8BJCLTBQxnBwoxBqiY22IGxA7P6f05/T679DWS8N...
00DA0000000KSei=1TBDp0000000006
32k8fnlbp6gyf370yqvkmkznb74t4ph0
docusign=115d199d-b836-4e95-88cc-10b6d34ccbee
e2ma-verification=yj1bb
e2ma-verification=b8rgb
google-site-verification=-roI0ZgYOurB4JSsbQK5dSRLAgOytKk6ZEUueYw78sA
SPF v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
Z2EEL6JS10KSL9JDLGYF347RJC8MCNCXC5W41CI43
CAALookup not available with standard resolver
Resolved in 138 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+
Crawlability
robots.txt present, sitemap with 95 URLs
PASS
robots.txt present, sitemap with 95 URLs
Info::
robots.txt is present
Got: 50 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 95 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 50 B Sitemaps referenced 1 User-agents Blocking No — crawling allowed
Sitemap: https://www.fiu.edu/_assets/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 95 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
fiu.edu — 36 years, 11 months old, hosted on Microsoft Azure
PASS
fiu.edu — 36 years, 11 months old, hosted on Microsoft Azure
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Info::
Hosting: Microsoft Azure
Got: AS8075
Domain expiry

410 days

July 31, 2027

SSL certificate

178 days

Issued by Sectigo Limited

Domain age

36 years, 11 months

Registered November 20, 1989

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Microsoft Azure

ASN AS8075

20.119.0.48

Registrar

Registrar unknown

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created November 20, 1989 (36 years, 11 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated December 4, 2025
Name Servers nameserver1.fiu.edu, nameserver3.fiu.edu
Registrant Florida International University
Hosting
IP Address 20.119.0.48
ASN AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US)
Provider Microsoft Azure
Data source: whois (0.9s)
A
HTTP Probe Timing
Total 525 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
129 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
96 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
201 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
526 ms
Total Time Total request time from DNS lookup through full response.
526 ms

Connection waterfall

DNS Lookup 129 ms TCP Connect 96 ms TLS Handshake 201 ms Server Processing 99 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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