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https://carleton.ca

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Madrid, Spain
200 OK
Checks
9
6 PASS 2 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
TLS Certificate Expiry & Recommendations
48 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

48
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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, 120 ms lookup
PASS
1 A records, 120 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 134.117.206.206
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns2.carleton.ca, ns1.d-zone.ca, ns2.d-zone.ca, ns1.carleton.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: 120 ms
Got: 120 ms
A134.117.206.206
AAAA—
CNAME—
NSns2.carleton.ca, ns1.d-zone.ca, ns2.d-zone.ca, ns1.carleton.ca
MX
10 carleton-ca.mail.protection.outlook.com
TXT
atlassian-domain-verification=v1EgxUeG13INzDRg6/SMcosyuhuUiYDXmVJjezHgJvF9yFpqTS...
Foxit-domain-verification=4cbcd33f49858f58d1dcafd87dbafa28
SPF v=spf1 ip4:134.117.1.26 ip4:134.117.1.27 ip4:134.117.1.28 ip4:134.117.1.29 ip4:1...
MS=27F160B0C56BEE5DB20D4C0FC0510AB44B646A24
google-site-verification=Wsc_XdsO0yVd4L6bonTo6tjtIu2qt7XQHR0wvcWI6l0
adobe-idp-site-verification=a9e5e9fd95e14629461e2fd2f92a76de177e4d705c62c76a183e...
bw=zNlRaYh7IeavihBxWseTJhiKfhb5bzTYSiFc28i25XAh
491ct4m7u1cak7315jmovtpba
druide-validation-domaine=C8e5C1449169E07E20Ef67fF33e45C18
adobe-idp-site-verification=0b387334ac82834e42668f024dff66e33563811e00c9c908cd3c...
MS=ms63135278
CAALookup not available with standard resolver
Resolved in 120 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://carleton.ca

https://carleton.ca

515 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://carleton.ca200515 msHTTP/1.1
A+
Crawlability
robots.txt present, sitemap with 4 URLs
PASS
robots.txt present, sitemap with 4 URLs
Info::
robots.txt is present
Got: 5821 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 4 entries
Info::
Sitemap index with 4 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 5821 B Sitemaps referenced 100 User-agents * Blocking No — crawling allowed
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://carleton.ca/sitemap_index.xml
Sitemap: https://carleton.ca/cutheme-docs/sitemap_index.xml
Sitemap: https://carleton.ca/webservices/sitemap_index.xml
Sitemap: https://carleton.ca/people-finance-operations/sitemap_index.xml
Sitemap: https://carleton.ca/accessibility/sitemap_index.xml
Sitemap: https://carleton.ca/cie/sitemap_index.xml
Sitemap: https://carleton.ca/clapp/sitemap_index.xml
Sitemap: https://carleton.ca/healthy-workplace/sitemap_index.xml
Sitemap: https://carleton.ca/pfm/sitemap_index.xml
Sitemap: https://carleton.ca/riskmanagement/sitemap_index.xml
Sitemap: https://carleton.ca/emergency/sitemap_index.xml
Sitemap: https://carleton.ca/ehs/sitemap_index.xml
Sitemap: https://carleton.ca/cee/sitemap_index.xml
Sitemap: https://carleton.ca/hr-policies/sitemap_index.xml
Sitemap: https://carleton.ca/hr-payroll/sitemap_index.xml
Sitemap: https://carleton.ca/hr/sitemap_index.xml
Sitemap: https://carleton.ca/discover/sitemap_index.xml
Sitemap: https://carleton.ca/sexual-violence-policy/sitemap_index.xml
Sitemap: https://carleton.ca/fpga/sitemap_index.xml
Sitemap: https://carleton.ca/safety/sitemap_index.xml
Sitemap: https://carleton.ca/fmp/sitemap_index.xml
Sitemap: https://carleton.ca/parking/sitemap_index.xml
Sitemap: https://carleton.ca/deputyprovost/sitemap_index.xml
Sitemap: https://carleton.ca/aah/sitemap_index.xml
Sitemap: https://carleton.ca/cicp-pcpob/sitemap_index.xml
Sitemap: https://carleton.ca/doe/sitemap_index.xml
Sitemap: https://carleton.ca/service-excellence/sitemap_index.xml
Sitemap: https://carleton.ca/permafrost/sitemap_index.xml
Sitemap: https://carleton.ca/curb/sitemap_index.xml
Sitemap: https://carleton.ca/learninganddevelopment/sitemap_index.xml
Sitemap: https://carleton.ca/vrip/sitemap_index.xml
Sitemap: https://carleton.ca/bea-well-lab/sitemap_index.xml
Sitemap: https://carleton.ca/mobileapp/sitemap_index.xml
Sitemap: https://carleton.ca/prismlab/sitemap_index.xml
Sitemap: https://carleton.ca/students-enrolment/sitemap_index.xml
Sitemap: https://carleton.ca/lifelong/sitemap_index.xml
Sitemap: https://carleton.ca/president/sitemap_index.xml
Sitemap: https://carleton.ca/whaleachoo/sitemap_index.xml
Sitemap: https://carleton.ca/ssc/sitemap_index.xml
Sitemap: https://carleton.ca/criminology/sitemap_index.xml
Sitemap: https://carleton.ca/generalstudies/sitemap_index.xml
Sitemap: https://carleton.ca/leader/sitemap_index.xml
Sitemap: https://carleton.ca/eetn/sitemap_index.xml
Sitemap: https://carleton.ca/advancement/sitemap_index.xml
Sitemap: https://carleton.ca/fass/sitemap_index.xml
Sitemap: https://carleton.ca/apclab/sitemap_index.xml
Sitemap: https://carleton.ca/tses/sitemap_index.xml
Sitemap: https://carleton.ca/isap/sitemap_index.xml
Sitemap: https://carleton.ca/sppa/sitemap_index.xml
Sitemap: https://carleton.ca/environmentalscience/sitemap_index.xml
Sitemap: https://carleton.ca/tim/sitemap_index.xml
Sitemap: https://carleton.ca/awards/sitemap_index.xml
Sitemap: https://carleton.ca/financializationlab/sitemap_index.xml
Sitemap: https://carleton.ca/unitedway/sitemap_index.xml
Sitemap: https://carleton.ca/ieis/sitemap_index.xml
Sitemap: https://carleton.ca/registration/sitemap_index.xml
Sitemap: https://carleton.ca/slals/sitemap_index.xml
Sitemap: https://carleton.ca/innovationhub/sitemap_index.xml
Sitemap: https://carleton.ca/curriculum/sitemap_index.xml
Sitemap: https://carleton.ca/seo/sitemap_index.xml
Sitemap: https://carleton.ca/esp/sitemap_index.xml
Sitemap: https://carleton.ca/engineering-design/sitemap_index.xml
Sitemap: https://carleton.ca/iatacertification/sitemap_index.xml
Sitemap: https://carleton.ca/landonpearsoncentre/sitemap_index.xml
Sitemap: https://carleton.ca/fallorientation/sitemap_index.xml
Sitemap: https://carleton.ca/upass/sitemap_index.xml
Sitemap: https://carleton.ca/cuonthego/sitemap_index.xml
Sitemap: https://carleton.ca/thecampusstore/sitemap_index.xml
Sitemap: https://carleton.ca/departmentalprinters/sitemap_index.xml
Sitemap: https://carleton.ca/history/sitemap_index.xml
Sitemap: https://carleton.ca/cusert/sitemap_index.xml
Sitemap: https://carleton.ca/apsi/sitemap_index.xml
Sitemap: https://carleton.ca/csit/sitemap_index.xml
Sitemap: https://carleton.ca/aeroacoustics/sitemap_index.xml
Sitemap: https://carleton.ca/filmstudies/sitemap_index.xml
Sitemap: https://carleton.ca/npsia/sitemap_index.xml
Sitemap: https://carleton.ca/studentaffairs/sitemap_index.xml
Sitemap: https://carleton.ca/determinants/sitemap_index.xml
Sitemap: https://carleton.ca/politicaleconomy/sitemap_index.xml
Sitemap: https://carleton.ca/digitalstrategy/sitemap_index.xml
Sitemap: https://carleton.ca/acbrlab/sitemap_index.xml
Sitemap: https://carleton.ca/nursing/sitemap_index.xml
Sitemap: https://carleton.ca/qualityinitiatives/sitemap_index.xml
Sitemap: https://carleton.ca/arc/sitemap_index.xml
Sitemap: https://carleton.ca/act/sitemap_index.xml
Sitemap: https://carleton.ca/career/sitemap_index.xml
Sitemap: https://carleton.ca/co-op/sitemap_index.xml
Sitemap: https://carleton.ca/ericsson/sitemap_index.xml
Sitemap: https://carleton.ca/mpnl/sitemap_index.xml
Sitemap: https://carleton.ca/music/sitemap_index.xml
Sitemap: https://carleton.ca/mailservices/sitemap_index.xml
Sitemap: https://carleton.ca/biochem/sitemap_index.xml
Sitemap: https://carleton.ca/quantum/sitemap_index.xml
Sitemap: https://carleton.ca/neuroscience/sitemap_index.xml
Sitemap: https://carleton.ca/webaccessibility/sitemap_index.xml
Sitemap: https://carleton.ca/autismlab/sitemap_index.xml
Sitemap: https://carleton.ca/provost/sitemap_index.xml
Sitemap: https://carleton.ca/mts/sitemap_index.xml
Sitemap: https://carleton.ca/cdcc/sitemap_index.xml
Sitemap: https://carleton.ca/pmc/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK
sitemap.xml 200 OK
Type Sitemap Index URLs 4 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

302https://www.carleton.ca/
200https://carleton.ca/

Preferred variant: non-www

HTTP → HTTPS

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

Consistent

A+
Domain Intelligence
carleton.ca — via Internic.ca Inc., 25 years, 10 months old, hosted on CARLETON-U - Carleton University, CA
PASS
carleton.ca — via Internic.ca Inc., 25 years, 10 months old, hosted on CARLETON-U - Carleton University, CA
Info::
Domain registered until Jan 12, 2034 (7 years, 10 months remaining)
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: Internic.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: CARLETON-U - Carleton University, CA
Got: AS29773
Domain expiry

2767 days

January 12, 2034

SSL certificate

48 days

Issued by Entrust Limited

Domain age

25 years, 10 months

Registered October 11, 2000

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

CARLETON-U - Carleton University, CA

ASN AS29773

134.117.206.206

Registrar

Internic.ca Inc.

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Internic.ca Inc.
Created October 11, 2000 (25 years, 10 months ago)
Expires January 12, 2034 (7 years, 10 months)
Last Updated January 23, 2024
Name Servers ns1.carleton.ca, ns1.d-zone.ca, ns2.carleton.ca, ns2.d-zone.ca
DNSSEC Not enabled
Registrant Carleton University
Hosting
IP Address 134.117.206.206
ASN AS29773 (CARLETON-U - Carleton University, CA)
Provider CARLETON-U - Carleton University, CA
Data source: rdap (0.7s)

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

A
HTTP Probe Timing
Total 684 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
36 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
126 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
256 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
558 ms
Total Time Total request time from DNS lookup through full response.
684 ms

Connection waterfall

DNS Lookup 36 ms TCP Connect 126 ms TLS Handshake 256 ms Server Processing 140 ms Content Transfer 126 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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