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https://umbc.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
97
GRADE
A+
FIX
0
REVIEW
1
PASS
8
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
8 PASS 1 REVIEW
B
TLS Certificate Expiry & Recommendations
60 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

60
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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, 278 ms lookup
PASS
1 A records, 278 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 23.185.0.4
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2620:12a:8001::4, 2620:12a:8000::4
Info::
5 nameserver(s) configured
Got: dnsexternal3.umbc.edu, dnsexternal4.umbc.edu, dnsexternal2.umbc.edu, dnsexternal.umbc.edu, dnsexternal1.umbc.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
Warning::
DNS resolution is slow (278 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 278 ms
A23.185.0.4
AAAA2620:12a:8001::4, 2620:12a:8000::4
CNAME—
NSdnsexternal3.umbc.edu, dnsexternal4.umbc.edu, dnsexternal2.umbc.edu, dnsexternal.umbc.edu, dnsexternal1.umbc.edu
MX
10 mxin.umbc.edu
TXT
smartsheet-site-validation=JhSCbxw7wX7eCT4G3xhhiEbvHkI-Z8K3
docusign=bce67f31-88f6-4139-a4af-9036ef6b9aa5
e2ma-verification=20fcb
google-site-verification=CZdGLsbiltmqC5-2J3kp9I2rbKpSrmXGbgok_K3pP_c
SPF v=spf1 ip4:176.31.145.254 ip4:130.85.0.0/16 ip4:34.194.230.233 ip4:34.230.107.21...
e2ma-verification=qckbb
apple-domain-verification=UBZIMi8zrC9IoHEf
e2ma-verification=w1fcb
amazonses:5Ig0nUCHQaSuDREQBSQdfBNjCWLAfbaqjIGuaOKwjCw=
docusign=139f743c-ee8c-4242-bc29-018380e725d1
google-site-verification=aq2r8eEF9ahoe1Kfwl8WsU9eimb74eWZ-87kEdpkLtg
google-site-verification=AGF4kWdXql9DWgUO8kJf_jPBmqT1H6WsUPIGX20FFzE
atlassian-sending-domain-verification=5f76a00e-c69b-4037-8323-1af5c4db3f99
b2ea09e7-d5cc-4f05-8e5f-4fd8a3b77754
e2ma-verification=30fcb
canva-site-verification=ZwCYjofoyy-LAblE1q_PjQ
google-site-verification=KUnf_9RHLz7bdEdAAiZWZl3a0htpseavDZdDSrjnhF4
jamf-site-verification=kPdT9OXdjhUToLYf7TEj1Q
atlassian-domain-verification=wmmJH/d6HSSunwA8a9RXFfnPX30yiRU1UFWm77aRncWH4mIFTi...
CAALookup not available with standard resolver
Resolved in 278 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+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://umbc.edu

https://umbc.edu

10 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://umbc.edu20010 msHTTP/1.1nginx
A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2620:12a:8001::4, 2620:12a:8000::4
Got: 1 ms connect
IPv6 Ready
AAAA Records 2620:12a:8001::4, 2620:12a:8000::4 Connection Reachable (1 ms)
A+
Crawlability
robots.txt present, sitemap with 21 URLs
PASS
robots.txt present, sitemap with 21 URLs
Info::
robots.txt is present
Got: 1264 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 21 entries
Info::
Sitemap index with 21 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1264 B Sitemaps referenced 1 User-agents ChatGPT-User, OAI-SearchBot, GPTBot, ClaudeBot, PerplexityBot, * Blocking No — crawling allowed
# robots.txt for https://umbc.edu/
# Last updated: 2025-06-17

# Standard WP hygiene
User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

# Legacy and non-public directories
Disallow: /documents/
Disallow: /emergency_test/
Disallow: /fonts/
Disallow: /givingday/
Disallow: /go/
Disallow: /graduate/
Disallow: /help/
Disallow: /ilsb/
Disallow: /images/
Disallow: /img/
Disallow: /images_email/
Disallow: /images_homepage/
Disallow: /images_new/
Disallow: /include/
Disallow: /includes/
Disallow: /innovate/
Disallow: /interns/
Disallow: /js/
Disallow: /lightcity/
Disallow: /marchmadness/
Disallow: /orientation/
Disallow: /retrievernation/
Disallow: /search/
Disallow: /stats/
Disallow: /stylesheets/
Disallow: /summer_interns2013/
Disallow: /templates/
Disallow: /template/
Disallow: /TSA/
Disallow: /tsaprequalified/
Disallow: /wordsofwisdom/

# API & feed endpoints
Disallow: /feed/
Disallow: /wp-json/

# Media
Allow: /uploads/
Disallow: /uploads/private/
Disallow: /uploads/temp/

# AI crawler rules (see notes above)
User-agent: ChatGPT-User
Allow: /
User-agent: OAI-SearchBot
Allow: /
User-agent: GPTBot
Disallow: /
User-agent: ClaudeBot
Disallow: /
User-agent: PerplexityBot
Disallow: /

# Sitemap
Sitemap: https://umbc.edu/sitemap_index.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 21 entries Valid XML Yes
Child Sitemaps:
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.umbc.edu/
200https://umbc.edu/

Preferred variant: non-www

HTTP → HTTPS

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

Consistent

A+
Domain Intelligence
umbc.edu — 38 years, 2 months old
PASS
umbc.edu — 38 years, 2 months old
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Domain expiry

410 days

July 31, 2027

SSL certificate

60 days

Issued by Let's Encrypt

Domain age

38 years, 2 months

Registered August 12, 1988

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2620:12a:8000::4

Registrar

Registrar unknown

Lock status unknown 5 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created August 12, 1988 (38 years, 2 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated October 14, 2024
Name Servers dnsexternal4.umbc.edu, dnsexternal.umbc.edu, dnsexternal3.umbc.edu, dnsexternal2.umbc.edu, dnsexternal1.umbc.edu
Registrant University of Maryland Baltimore County (UMBC-DOM
Hosting
IP Address 2620:12a:8000::4
Data source: whois (0.7s)
A+
HTTP Probe Timing
Total 343 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.
0 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
4 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
341 ms
Total Time Total request time from DNS lookup through full response.
343 ms

Connection waterfall

DNS Lookup 107 ms TCP Connect 0 ms TLS Handshake 4 ms Server Processing 230 ms Content Transfer 2 ms
A+
CDN & Delivery
Fastly (HIT, MISS, MISS, MISS)
PASS
Fastly (HIT, MISS, MISS, MISS)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-chi-kigq8000149-CHI, cache-toj-leto2350079-TOJ, cache-toj-leto2350067-TOJ, cache-toj-leto2350067-TOJ
Info::
CDN cache status: HIT, MISS, MISS, MISS
CDN Detected: Fastly
Provider Fastly Cache Status HIT, MISS, MISS, MISS Evidence x-served-by: cache-chi-kigq8000149-CHI, cache-toj-leto2350079-TOJ, cache-toj-leto2350067-TOJ, cache-toj-leto2350067-TOJ
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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