Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BCrawlabilityrobots.txt present, no sitemapREVIEW
A sitemap helps search engines discover and index your pages more efficiently.
No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.
Learn more ▾ ▴
A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.
Source: sitemaps.org / Google Search Central
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
user-agent: *
#
#control parameterization on scientific monitoring pages
Disallow: *scientific-monitoring.html?*
Disallow: *veille-scientifique.html?*
#
#control calendar indexation
Disallow: *calendar-deseve.html?*
Disallow: *calendar-va114.html?*
#
#control search spam
Disallow: /search.html?search-mode=*
#
#disallow crawling of old events pages - 2021 & 2022 still produce traffic
disallow: /cuevents/*/200*
disallow: /cuevents/*/201*
disallow: /cuevents/*/2020/*
Disallow: /ucactualites/*/200*
Disallow: /ucactualites/*/201*
Disallow: /ucactualites/*/2020/*
#
#Control crawling of errant social media site URLs being appended to all-groups.html
Disallow: */all-groups.html*.com
#
#Block empty root faculty page from crawling so primary faculty page ranks
Disallow: /faculty.html$
Disallow: /news/newsletters/*
Disallow: /services/profile/attachment*
Disallow: /etc/designs/concordia/resources*
User-Agent: Googlebot-news
Disallow: /profiles/
Disallow: /content/shared/en/profiles/*
No sitemap found
Adding a sitemap helps search engines discover your pages.
CURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
BTLS Certificate Expiry & Recommendations44 days until leaf cert expires — 2 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records1 A records, 72 ms lookupPASS
| A | 132.205.244.185 |
| AAAA | — |
| CNAME | — |
| NS | ns1.cc.umanitoba.ca, ns1.zonerisq.ca, ns2.zonerisq.ca, ns-a.concordia.ca, ns-b.concordia.ca, ns1-1.cc.umanitoba.ca |
| MX | 10 ums-sgw-gw.concordia.ca 10 ums-loy-gw.concordia.ca |
| TXT | 1vqcgpqbl12w1l7xhv5ltbkrj9q74s5r _66o43uia4qoilex7nyia1tdr5ax80vp _j345icl9xsq5mn0cackupsdxmkky4dq _tfncmckq74rua5gju5jo1vef8s7t676 apple-domain-verification=iUVRRs3hJFYY2CAC MS=181601A53DE8C2F3254D8E00A1198DA937922397 docusign=9e457a72-4f2a-4114-831d-d56cd30c15b2 jamf-site-verification=qg1gAqCuxYrBYGpkQh3l1g amazonses:JJEgc2X8caKvveKF0PnGDM7lVON1QBt/fDCo18QC6Mg= knowbe4-site-verification=3d5afed8e3b444af895e4f9828c0b4e2 facebook-domain-verification=jw4n94mv6pja2qr6tjy25iwm8e0t6p google-site-verification=uOIZvTwus80VB_IdnC9t4akqt-tmMiAUREUcvDo8hMg _globalsign-domain-verification=-C2dT9yzatXeqjjxdiza_spaIeYnHB9ajTpycaC6pG _globalsign-domain-verification=1r7-4B_s4TuugHTDktmXVWuMs_IbbUt-MQ04moheXk _globalsign-domain-verification=GkGfTl8rAs9S59Xaoa41cGQYwwCw7K-ss4BzeKCUAe _globalsign-domain-verification=Idtfy9h0ljEyPFDlzDsyYtWTtaAH_HaGu2VJz7PiBS _globalsign-domain-verification=VLbEe4AAqYazWz4TZT8aeHk467u58EVHD2Hu5m1ruC _globalsign-domain-verification=kY1gyzMmC6sM8NrC3LA3SMrFtbYG4dBKAi5M06TYtE _globalsign-domain-verification=qLKA0thmOEtbbRtz2UBwDtRRfnnH6r-srYz2xJwRns b4ePjd4+yFILE7PxBKWsQhZJj32C5CYTRoWOko3gs6+1sscmYSepshKhpUHtA1Fd8u8jGpOnPqvypaAa... adobe-idp-site-verification=23c0a80f2ab63e221e3706dbed37e5c3c556ca4bd7065d819fe0... cisco-ci-domain-verification=28a4ea26fa8c540ab097d802f51b8221fe0ba282bf79b7fc91f... SPF v=spf1 ip4:132.205.153.10 ip4:132.205.157.10 ip4:132.205.123.180 ip4:132.205.123... |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
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.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 480 ms totalPASS
https://concordia.ca
229 ms · HTTP/1.1
https://www.concordia.ca/
251 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://concordia.ca | 307 | 229 ms | HTTP/1.1 | |
| 2 | https://www.concordia.ca/ | 200 | 251 ms | HTTP/1.1 | Microsoft-IIS/10.0 |
See the visual redirect chain in the HTTP Probe tab →
A+Domain Intelligenceconcordia.ca — via A.R.C. Informatique Inc., 25 years, 11 months old, hosted on RISQ-AS - Reseau dInformations Scientifiques du Quebec RISQ Inc., CAPASS
1361 days
April 7, 2030
44 days
Issued by GlobalSign nv-sa
25 years, 11 months
Registered September 25, 2000
Enabled
Protects against DNS spoofing
RISQ-AS - Reseau dInformations Scientifiques du Quebec RISQ Inc., CA
ASN AS376
132.205.244.185
A.R.C. Informatique Inc.
Expiry timeline
Recommended actions
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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.
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