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https://ucd.ie

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Amsterdam, Netherlands
301 Moved Permanently
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.

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.ucd.ie/
200https://ucd.ie/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://ucd.ie/ → https://ucd.ie:443/

Consistent

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

Certificate validity

324
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, 19 ms lookup
PASS
2 A records, 19 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 166.117.236.203, 15.197.133.170
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: auth-ns2.ucd.ie, scsnms.switch.ch, auth-ns1.ucd.ie, sec-ns.tcd.ie
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
Info::
DNS resolution time: 19 ms
Got: 19 ms
A166.117.236.203, 15.197.133.170
AAAA—
CNAME—
NSauth-ns2.ucd.ie, scsnms.switch.ch, auth-ns1.ucd.ie, sec-ns.tcd.ie
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
TXT
ZA=oOPXdlAqsqhyCsSnRZlaAQ==
MS=ms71767614
HARICA-GJefzqJELOZqrVf399C
duo_sso_verification=JQ2ads5QoGIiNilV1OEFIB6VEOmXO7XpIvY43usJr6VQtWyaJSp5gXu3Qjm...
mgverify=075f069bd64053c94d6b54d61c3c8d801ba45bc2d65aa237a5642b4587408366
atlassian-domain-verification=T2KK9/A4YA1PCgIGzCRSxXA3ZJUY8vdGFpAQdimJ17d8tEORny...
asv=2f904f2dfeac8cc5a0b457d6b80123ee
stripe-verification=3325436FFA03DC5CAE353D977AA8A3E9E4E24005F12C786324D1D5A01062...
SPF v=spf1 ip4:137.43.231.0/24 ip4:137.43.91.0/24 ip4:193.1.174.0/23 ip4:216.17.121....
HARICA-nvhAp2Dqh3UEQvHVEUe
facebook-domain-verification=tltbxr8j7a2aga84ulop32j8pp3l69
google-site-verification=7FgSxkuHsf8xdIMLv8iPoBsWHKVdNMCeR2Y1a7divI8
CAALookup not available with standard resolver
Resolved in 19 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.

A
Redirect Chain
1 redirect(s), 405 ms total
PASS
1 redirect(s), 405 ms total
Info::
Single redirect
Got: https://ucd.ie → https://www.ucd.ie:443/ (301)
Info::
WWW normalization redirect

https://ucd.ie

83 ms · HTTP/1.1

301

https://www.ucd.ie:443/

321 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ucd.ie30183 msHTTP/1.1awselb/2.0
2https://www.ucd.ie:443/200321 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 93 URLs
PASS
robots.txt present, sitemap with 93 URLs
Info::
robots.txt is present
Got: 334 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 93 entries
Info::
Sitemap index with 93 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 334 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /webteam/
Disallow: /webtest1/
Disallow: /webtest2/
Disallow: /webtest3/
Disallow: /webtest4/
Disallow: /jstest/
Disallow: /testpa/
Disallow: /testlib/
Disallow: /sademo/
Disallow: /quinn/joinevent2021/
Disallow: /microcredentials/explorecourses/medicineandhealth/entryrequirements/
Disallow: /webdevbilingual/
sitemap.xml 200 OK
Type Sitemap Index URLs 93 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
ucd.ie — via HEAnet, 29 years, 5 months old, hosted on AWS
PASS
ucd.ie — via HEAnet, 29 years, 5 months old, hosted on AWS
Info::
Domain registered until Apr 4, 2027 (11 months remaining)
Info::
Registrar: HEAnet
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

264 days

April 4, 2027

SSL certificate

324 days

Issued by Amazon

Domain age

29 years, 5 months

Registered April 3, 1997

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

15.197.133.170

Registrar

HEAnet

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar HEAnet
Created April 3, 1997 (29 years, 5 months ago)
Expires April 4, 2027 (11 months)
Last Updated April 4, 2026
Name Servers auth-ns1.ucd.ie, auth-ns2.ucd.ie, scsnms.switch.ch, sec-ns.tcd.ie
Hosting
IP Address 15.197.133.170
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.6s)

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more ▾

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 67 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
19 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
31 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
67 ms
Total Time Total request time from DNS lookup through full response.
67 ms

Connection waterfall

DNS Lookup 19 ms TCP Connect 1 ms TLS Handshake 31 ms Server Processing 16 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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