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https://ucalgary.ca

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
77
GRADE
C
FIX
1
REVIEW
6
PASS
2
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
2 PASS 6 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

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 2019 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more ▾

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

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 2019 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-Agent: *

Disallow: /UofC
Disallow: /cgi-bin/medicine/deans/
Disallow: /campusplan.2000-11-28
Disallow: /reznet.2007-04-24
Disallow: /westcampus.2007-06-05
Disallow: /mp2003/contact.2007-04-19
Disallow: /IT/self_help
Disallow: /it/self_help
Disallow: /ISC
Disallow: /UofC/students/ISC
Disallow: /it/ADS
Disallow: /IT
Disallow: /it/accounts
Disallow: /it/ADS
Disallow: /it/communique
Disallow: /it/computersupport
Disallow: /it/computing
Disallow: /it/dtp
Disallow: /it/it_main_images
Disallow: /it/itsupport
Disallow: /it/mswordthesisstylefiles
Disallow: /it/myaccount.html
Disallow: /it/new_users
Disallow: /it/ourteam
Disallow: /it/publications
Disallow: /it/sales_rentals
Disallow: /it/self_help
Disallow: /it/service_index
Disallow: /it/service_locations
Disallow: /it/support_services
Disallow: /it/web_based
Disallow: /it/xwin32
Disallow: /darmstro_hr
Disallow: /uofc/departments/HR/orgserv/consulting.html
Disallow: /obsolete
Disallow: /UP
Disallow: /up
Disallow: /IR
Disallow: /INFO
Disallow: /*/includes/
Disallow: /*/misc/
Disallow: /*/modules/
Disallow: /*/scripts/
Disallow: /*/themes/
Disallow: /*/files_private/
Disallow: /*/CHANGELOG.txt
Disallow: /*/cron.php
Disallow: /*/INSTALL.mysql.txt
Disallow: /*/INSTALL.pgsql.txt
Disallow: /*/install.php
Disallow: /*/INSTALL.txt
Disallow: /*/LICENSE.txt
Disallow: /*/MAINTAINERS.txt
Disallow: /*/update.php
Disallow: /*/UPGRADE.txt
Disallow: /*/xmlrpc.php
Disallow: /*/admin/
Disallow: /*/comment/reply/
Disallow: /*/contact/
Disallow: /*/logout/
Disallow: /*/node/add/
Disallow: /*/search/
Disallow: /*/user/register/
Disallow: /*/user/password/
Disallow: /*/user/login/
Disallow: /*/?q=admin/
Disallow: /*/?q=comment/reply/
Disallow: /*/?q=contact/
Disallow: /*/?q=logout/
Disallow: /*/?q=node/add/
Disallow: /*/?q=search/
Disallow: /*/?q=user/password/
Disallow: /*/?q=user/register/
Disallow: /*/?q=user/login/
Disallow: /*?thickbox
Disallow: /info/
Disallow: /info_beta/
Disallow: /info.php/
Disallow: /info_qa/
Disallow: /calendar/
Disallow: /event/
sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
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.ucalgary.ca/
200https://ucalgary.ca/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://ucalgary.ca/ → https://ucalgary.ca/

Consistent

B
Domain Intelligence
ucalgary.ca — via Webnames.ca Inc., 25 years, 11 months old, hosted on U-CALGARY - University of Calgary, CA
REVIEW
ucalgary.ca — via Webnames.ca Inc., 25 years, 11 months old, hosted on U-CALGARY - University of Calgary, CA
Critical::
Domain expires in 19 days
This domain expires on May 11, 2026. Domains that expire accidentally cause complete website downtime. Enable auto-renewal or renew manually now.
Got: Expires May 11, 2026
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: Webnames.ca Inc.
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: U-CALGARY - University of Calgary, CA
Got: AS33091
Domain expiry

EXPIRED

May 11, 2026

SSL certificate

255 days

Issued by Entrust Limited

Domain age

25 years, 11 months

Registered October 3, 2000

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

U-CALGARY - University of Calgary, CA

ASN AS33091

136.159.96.125

Registrar

Webnames.ca Inc.

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Domain has EXPIRED — renew immediately to avoid total site outage
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Webnames.ca Inc.
Created October 3, 2000 (25 years, 11 months ago)
Expires May 11, 2026 (19 days)
Last Updated April 16, 2026
Name Servers ns1.d-zone.ca, ns2.d-zone.ca
DNSSEC Not enabled
Registrant Webnames Private
Hosting
IP Address 136.159.96.125
ASN AS33091 (U-CALGARY - University of Calgary, CA)
Provider U-CALGARY - University of Calgary, CA
Data source: rdap (2.2s)

This domain expires on May 11, 2026. Domains that expire accidentally cause complete website downtime. Enable auto-renewal or renew manually now.

Why this matters

Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.

Source: ICANN renewal policy

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

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

B
HTTP Probe Timing
Total 827 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
31 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
192 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
392 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
822 ms
Total Time Total request time from DNS lookup through full response.
827 ms

Connection waterfall

DNS Lookup 31 ms TCP Connect 192 ms TLS Handshake 392 ms Server Processing 208 ms Content Transfer 5 ms
B
TLS Certificate Expiry & Recommendations
255 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

255
days left
0d 30d 60d 90d+

Recommended actions

  • 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, 46 ms lookup
PASS
1 A records, 46 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 136.159.96.125
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: ns1.d-zone.ca, ns2.d-zone.ca
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: 46 ms
Got: 46 ms
A136.159.96.125
AAAA—
CNAME—
NSns1.d-zone.ca, ns2.d-zone.ca
MX
5 ucalgary-ca.mail.protection.outlook.com
TXT
jamf-site-verification=DzJJmFu-0k1M3S9KTr-36Q
adobe-idp-site-verification=cb6e91a5a02c6b014323ae4184e124fbfe3965ebfde31ad0802e...
d365mktkey=b0dUAgJH7vzIzsosfngAtrbZGTT1xV2IO76f2ivMt9cx
google-site-verification=xYQs7RacGUOA75hPJHwU8CHqnBOueU6AkJZY_ifuCuc
facebook-domain-verification=k89adpscyiujutnfv4unk9gutfl5y5
asv=d93cf110eb28f99dcf75cff09b9cc9f5
0SFxMo8TkUxL9k79fN5l0+Hzqo24h0BLjO4ipbBfCzlEMF4NVabtAitRrp8n3mH/vzQwvRpfVUPguw+T...
google-site-verification=fauZgIxEX52zYISUw69_ylAEq_JOZii9wmNgubnkSRc
SPF v=spf1 include:a._spf.brightspace.com include:spf.protection.outlook.com include...
MS=ms91713506
google-site-verification=VXpXORHaFsQ7R4E45WpFjBBaGi0cS3ZhVb06IV0DhV4
google-site-verification=0izjhipcDtEdtQmWNF_F0u5RAhQK_l6MoNwxZz4sOLk
google-site-verification=Yrc37CCXaxjvgf0oeLWifj6eA1HH27iDJhxkVdN0JvA
atlassian-domain-verification=1Bt3j7nHozxaFUFA27iwWdciP7ziJWRW9yqAxGafemuCUZfi2S...
amazonses:uZFv8VXQ+Jg6rTGMrJEw9QuOZ21uFCavRuR7sRfkW0o=
apple-domain-verification=7IBYWCZWXhGAR5fo
CAALookup not available with standard resolver
Resolved in 46 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
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://ucalgary.ca

https://ucalgary.ca

807 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ucalgary.ca200807 msHTTP/1.1
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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