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https://yorku.ca

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
77
GRADE
C
FIX
2
REVIEW
4
PASS
3
INFO
0
Probed from Singapore, Singapore
302 Found
Checks
9
3 PASS 4 REVIEW 2 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 302 Expected: 301 redirect to HTTPS

www / non-www

200https://www.yorku.ca/
200https://yorku.ca/

Inconsistent — duplicate content risk

HTTP → HTTPS

302http://yorku.ca/ http://www.yorku.ca/

HTTP version does not redirect to HTTPS

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), 2616 ms total
REVIEW
1 redirect(s), 2616 ms total
Info::
Single redirect
Got: https://yorku.ca → https://www.yorku.ca/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://yorku.ca
Warning::
Redirect overhead: 2616 ms total
Got: 2616 ms

https://yorku.ca

944 ms · HTTP/1.1

302

https://www.yorku.ca/

1672 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://yorku.ca302944 msHTTP/1.1Apache/2.4.41 (Ubuntu)
2https://www.yorku.ca/2001672 msHTTP/1.1Apache/2.4.52 (Ubuntu)

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

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
HTTP Probe Timing
Total 926 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
234 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
230 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
233 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
926 ms
Total Time Total request time from DNS lookup through full response.
927 ms

Connection waterfall

DNS Lookup 234 ms TCP Connect 230 ms TLS Handshake 233 ms Server Processing 230 ms Content Transfer 0 ms
B
TLS Certificate Expiry & Recommendations
157 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

157
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, 1378 ms lookup
PASS
1 A records, 1378 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 130.63.236.137
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
5 nameserver(s) configured
Got: hanna.cac.washington.edu, ns2.d-zone.ca, ns1.d-zone.ca, dns11.ipns.yorku.ca, dns21.ipns.yorku.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
Warning::
DNS resolution is slow (1378 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1378 ms
A130.63.236.137
AAAA
CNAME
NShanna.cac.washington.edu, ns2.d-zone.ca, ns1.d-zone.ca, dns11.ipns.yorku.ca, dns21.ipns.yorku.ca
MX
15 yorku-ca.mail.protection.outlook.com
TXT
gNl6dE73GfizSXBdh9sRRbZRYK66p3/GzA40v0Bh5wo=
google-site-verification=HCqXPuSJti1JMz9WYfpAQomuDBezBcVbOX3DH4OMDNg
ol6q984dvqv2gllffi7fv21r19
mailerlite-domain-verification=ac67b0ffb481036fe564c6495b96b1c1b2299abd
MS=ms91133040
google-site-verification=ZmYEEGrmT5apEYnqA9LZy1jKNVi6wgdAqWgwy9brI6s
hg47hr7cojknu36l8ps5800lb0
m22j00lqrdkp3bjq1a8ehj9nm6
bcn=388AE4E0-AD3F-11ED-8D65-B9F5B0A70446
SPF v=spf1 include:spf.protection.outlook.com include:aspmx.pardot.com include:spf.y...
google-site-verification=8PFCPPXjRT010o3J-VKHd3ew98mCwGcL9uKs4KrKISg
google-site-verification=cPuJTkAgSeqoXnKMKvF6hBmpALLXu5f-FuxRjavZMpE
Value = google-site-verification=PKu41b2bWAavyky4USjpvc6tdT0VM9KuHNsrsryxsHM
g5lkd8zr5kj5zkgx5zm1sz99l8g4969d
MS=E62E792EF3ED047BBB5E588DE685B36CF0BEE6FB
asv=71f0e229bbaa2d7e01c952199aa1aab2
google-site-verification=CY8RxdePRoy9XzYsVqBEZeHHh_xgop91RlaHP5IUfqk
RU6OXF90HJ0A3IQBOAT5W78SFY7ZKHXENV5EAM6P6
dvc=gNl6dE73GfizSXBdh9sRRbZRYK66p3/GzA40v0Bh5wo=
Foxit-domain-verification=a96fee5e2d0bac7a1d5bb971b81487fe
CAALookup not available with standard resolver
Resolved in 1378 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+
Crawlability
robots.txt present, sitemap with 4 URLs
PASS
robots.txt present, sitemap with 4 URLs
Info::
robots.txt is present
Got: 4450 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 4450 B Sitemaps referenced 68 User-agents * Blocking No — crawling allowed
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://www.yorku.ca/sitemap_index.xml
Sitemap: https://www.yorku.ca/digitalexperiencehub/sitemap_index.xml
Sitemap: https://www.yorku.ca/about/sitemap_index.xml
Sitemap: https://www.yorku.ca/aifprojects/sitemap_index.xml
Sitemap: https://www.yorku.ca/vptl/sitemap_index.xml
Sitemap: https://www.yorku.ca/unit/cpa/sitemap_index.xml
Sitemap: https://www.yorku.ca/edu/sitemap_index.xml
Sitemap: https://www.yorku.ca/health/sitemap_index.xml
Sitemap: https://www.yorku.ca/science/sitemap_index.xml
Sitemap: https://www.yorku.ca/partnerships/sitemap_index.xml
Sitemap: https://www.yorku.ca/president/sitemap_index.xml
Sitemap: https://www.yorku.ca/scld/sitemap_index.xml
Sitemap: https://www.yorku.ca/dfa/sitemap_index.xml
Sitemap: https://www.yorku.ca/study/sitemap_index.xml
Sitemap: https://www.yorku.ca/laps/sitemap_index.xml
Sitemap: https://www.yorku.ca/facilities/sitemap_index.xml
Sitemap: https://www.yorku.ca/unit/gcrp/sitemap_index.xml
Sitemap: https://www.yorku.ca/foodservices/sitemap_index.xml
Sitemap: https://www.yorku.ca/transportation/sitemap_index.xml
Sitemap: https://www.yorku.ca/housing/sitemap_index.xml
Sitemap: https://www.yorku.ca/science/biology/sitemap_index.xml
Sitemap: https://www.yorku.ca/science/mathstats/sitemap_index.xml
Sitemap: https://www.yorku.ca/riskmanagement/sitemap_index.xml
Sitemap: https://www.yorku.ca/alumniandfriends/sitemap_index.xml
Sitemap: https://www.yorku.ca/c4/sitemap_index.xml
Sitemap: https://www.yorku.ca/global-engagement/sitemap_index.xml
Sitemap: https://www.yorku.ca/finance/sitemap_index.xml
Sitemap: https://www.yorku.ca/safety/sitemap_index.xml
Sitemap: https://www.yorku.ca/cvr/sitemap_index.xml
Sitemap: https://www.yorku.ca/ssrp/sitemap_index.xml
Sitemap: https://www.yorku.ca/orientation/sitemap_index.xml
Sitemap: https://www.yorku.ca/labour/sitemap_index.xml
Sitemap: https://www.yorku.ca/secretariat/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/futurestudents/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/futurestudents/discover/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/biology/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/businesseconomics/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/canadianstudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/communications/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/economics/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/bed/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/englishstudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/frenchstudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/genderwomensstudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/history/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/internationalstudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/businessinternational/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/linguisticslanguagestudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/mathematics/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/philosophy/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/politicalscience/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/psychology/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/sexualitystudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/sociology/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/spanish-and-latin-american-cultures-and-societies/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/translation/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/undecidedmajor/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/certificates/sbpc/sitemap_index.xml
Sitemap: https://www.yorku.ca/glendon/certificates/publichistory/sitemap_index.xml
Sitemap: https://www.yorku.ca/laps-child/sitemap_index.xml
Sitemap: https://www.yorku.ca/health-child/sitemap_index.xml
Sitemap: https://www.yorku.ca/dighr/sitemap_index.xml
Sitemap: https://www.yorku.ca/gradstudies/sitemap_index.xml
Sitemap: https://www.yorku.ca/science/physics/sitemap_index.xml
Sitemap: https://www.yorku.ca/science/chemistry/sitemap_index.xml
Sitemap: https://www.yorku.ca/laps/shrm/sitemap_index.xml
Sitemap: https://www.yorku.ca/laps/huma/sitemap_index.xml
Sitemap: https://www.yorku.ca/laps/sas/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK
A+
Domain Intelligence
yorku.ca — via Webnames.ca Inc., 25 years, 10 months old, hosted on YORKU-AS - York University, CA
PASS
yorku.ca — via Webnames.ca Inc., 25 years, 10 months old, hosted on YORKU-AS - York University, CA
Info::
Domain registered until Feb 14, 2035 (8 years, 11 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: 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: YORKU-AS - York University, CA
Got: AS802
Domain expiry

3133 days

February 14, 2035

SSL certificate

157 days

Issued by GlobalSign nv-sa

Domain age

25 years, 10 months

Registered October 6, 2000

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

YORKU-AS - York University, CA

ASN AS802

130.63.236.137

Registrar

Webnames.ca Inc.

Unlocked 3 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 Webnames.ca Inc.
Created October 6, 2000 (25 years, 10 months ago)
Expires February 14, 2035 (8 years, 11 months)
Last Updated April 16, 2026
Name Servers dns11.ipns.yorku.ca, dns21.ipns.yorku.ca, hanna.cac.washington.edu
DNSSEC Not enabled
Registrant York University
Hosting
IP Address 130.63.236.137
ASN AS802 (YORKU-AS - York University, CA)
Provider YORKU-AS - York University, CA
Data source: rdap (1.4s)

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

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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