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.
BHTTP Probe TimingTotal 993 ms — DNS, TCP, TLS, TTFB, content transfer breakdownREVIEW
Connection waterfall
BTLS Certificate Expiry & Recommendations84 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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 Records3 A records, 195 ms lookupPASS
| A | 185.125.190.29, 185.125.190.20, 185.125.190.21 |
| AAAA | 2620:2d:4000:1::26, 2620:2d:4000:1::27, 2620:2d:4000:1::28 |
| CNAME | — |
| NS | ns1.canonical.com, ns2.canonical.com, ns3.canonical.com |
| MX | 10 mx.canonical.com |
| TXT | stripe-verification=98BE42870B792CFFB903D0F2C986A63D047CAF3801CE7667CEEC65F4EB8F... site24x7-signals-domain-verification=b658d86f83932f4ad589595687cf5f20 site24x7-signals-domain-verification=b053701422ea32428dc87e6d694abea7 SPF v=spf1 include:_spf.canonical.com -all google-site-verification=987aj5PIoVpH3ybA_tMmNcCZ7sY64IUEGaeafo_hrFk miro-verification=2a474c203a12d0d3bdedb1dbfd7df2350d60c43d bw=FUPOteh4WFoKj2FJCprEWcFcZYwSQOSwgn2njwUTAlAn apple-domain-verification=p5U0KoYntPjPy6ah google-site-verification=RFZCSssfnIjPnBo0k6W72VsUfYqbknSNqIgy2TrcMms atlassian-domain-verification=EfMI3zSzpIoFk2/QhOqWVwC3swzqP9UryHYJFB0SyITHLVntyX... |
| CAA | Lookup not available with standard resolver |
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.
A+Redirect ChainNo redirects — direct accessPASS
https://canonical.com
724 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://canonical.com | 200 | 724 ms | HTTP/1.1 | nginx/1.14.0 (Ubuntu) |
A+IPv6 ReadinessIPv6 reachable (179 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 9 URLsPASS
# ============================================================================
# robots.txt for canonical.com
# Optimized for maximum AI visibility and LLM Context Efficiency
# Last updated: 2026-04-16
# ============================================================================
# ============================================================================
# DEFAULT RULES — all crawlers
# ============================================================================
User-Agent: *
# Authentication, API & JSON endpoints
Disallow: /legal/contributors/agreement/api
Disallow: /asset/
Disallow: /careers/roles.json
Disallow: /juju/latest.json
Disallow: /user-country-tz.json
Disallow: /solutions/infrastructure/private-cloud-pricing.json
Disallow: /sitemap_parser
Disallow: /navigation
Disallow: /tests/
# Search and Form flows
Disallow: /search
Disallow: /juju/docs/search
Disallow: /dqlite/docs/search
Disallow: /maas/docs/search
Disallow: /mir/docs/search
Disallow: /microk8s/docs/search
Disallow: /contact-us
Disallow: /careers/application/
Disallow: /careers/results
Disallow: /*/thank-you
Disallow: /partners/thank-you
# Binary redirects & feeds
Disallow: /multipass/download/
Disallow: /blog/feed
Disallow: /maas/blog/feed
Disallow: /careers/feed
# Error pages
Disallow: /401
Disallow: /404
Disallow: /500
Disallow: /502
Crawl-delay: 1
# ============================================================================
# AI OPTIMIZED RULES
# Includes: OpenAI, Perplexity, and Anthropic
# ============================================================================
User-agent: GPTBot
User-agent: ChatGPT-User
User-agent: ClaudeBot
User-agent: Claude-Web
User-agent: anthropic-ai
User-agent: Google-Extended
User-agent: meta-externalagent
User-agent: PerplexityBot
User-agent: cohere-ai
User-agent: Bytespider
# Nudge toward Markdown endpoints
Allow: /*?format=md
# High-Value Content Priority (Verified product & doc routes)
Allow: /blog/
Allow: /documentation/
Allow: /knowledge/
Allow: /juju/docs/
Allow: /maas/docs/
Allow: /microk8s/docs/
Allow: /openstack/
Allow: /kubernetes/
Allow: /lxd/
Allow: /multipass/
Allow: /solutions/
Allow: /case-study
Allow: /academy/
# Block Noise (Preserve context window for technical content)
Disallow: /blog/author/
Disallow: /blog/tag/
Disallow: /blog/archive
Disallow: /maas/blog/author/
Disallow: /maas/blog/tag/
Disallow: /maas/blog/archive
Disallow: /contact-us
Disallow: /*/contact-us
Disallow: /*/thank-you
Disallow: /asset/
Disallow: /navigation
Disallow: /search
Disallow: /tests/
# Performance
Crawl-delay: 2
# ============================================================================
# SITEMAPS
# ============================================================================
Sitemap: https://canonical.com/sitemap.xml
# Prioritized Trees for AI Crawlers
Sitemap: https://canonical.com/sitemap_tree.xml
Sitemap: https://canonical.com/blog/sitemap.xml
Sitemap: https://canonical.com/microk8s/docs/sitemap.xml
Sitemap: https://canonical.com/maas/docs/sitemap.xml
Sitemap: https://canonical.com/data/docs/sitemap.xml
Sitemap: https://canonical.com/partners/sitemap.xml
- https://canonical.com/sitemap_tree.xml
- https://canonical.com/careers/sitemap.xm...
- https://canonical.com/partners/sitemap.x...
- https://canonical.com/blog/sitemap.xml
- https://canonical.com/microk8s/docs/site...
- https://canonical.com/data/docs/sitemap....
- https://canonical.com/dqlite/docs/sitema...
- https://canonical.com/mir/docs/sitemap.x...
- https://canonical.com/maas/docs/sitemap....
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
Preferred variant: non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencecanonical.com — via MarkMonitor Inc., 30 years, 2 months oldPASS
383 days
July 4, 2027
84 days
Issued by Let's Encrypt
30 years, 2 months
Registered July 5, 1996
Not enabled
Protects against DNS spoofing
Unknown
2620:2d:4000:1::28
MarkMonitor Inc.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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