perimeterinstitute.ca

Scanned URL: https://perimeterinstitute.ca

📅 Scan completed: April 17, 2026 at 2:40 AM

63
/ 100
C
Average
Overall Domain Score
SEO 69 · LLM 45 · Perf 73
69

πŸ” SEO Score

9 / 13 checks passed

45

πŸ€– LLM Readiness

5 / 11 checks passed

73

⚑ Performance

8 / 11 checks passed

πŸ“ Extracted Page Tags
Title Tag
Homepage | Perimeter Institute
Meta Description
From quarks to black holes & beyond, explore free physics lectures, seminars, & courses for teachers & students from high school to post university.
H1 Heading
Building Canada’s theoretical physics institute
Canonical URL
https://perimeterinstitute.ca/
πŸ” SEO Audit
69/100
βœ… Title Tag
Length: 30 chars (Ideal: 30-60).
βœ… Meta Description
Length: 148 chars (Ideal: 50-160).
βœ… H1 Tag
Found 1 H1 tags. Exactly 1 is recommended.
βœ… Canonical URL
Canonical URL is set.
❌ Open Graph Tags
Found 0 OG properties (4+ recommended).
βœ… Indexability
Page allows indexing.
βœ… Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
10 of 15 images missing alt.
❌ Sitemap
No sitemap found in robots.txt.
βœ… Heading Hierarchy
H1 and H2 structure detected.
βœ… Internal Links
Found 63 internal links.
❌ HSTS Security
Missing HSTS header.
βœ… HTTPS
Loads securely over HTTPS.
πŸ€– LLMO
45/100
❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
βœ… Contextual Summary
Description provides good AI context.
❌ E-E-A-T (Author)
No author meta or schema.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
βœ… AI Crawler Access
AI agents not blocked.
βœ… Language Declaration
Language set to 'en'.
βœ… Semantic Structure
Uses <main> or <article>.
βœ… Entity Verification Links
Social/publisher profiles linked.
⚑ Performance
73/100
Network Waterfall (Total: 122ms)
  • DNS: 28ms
  • Connect: 36ms
  • TTFB: 114ms
  • Download: 8ms
βœ… Time to First Byte (TTFB)
TTFB: 114ms (Target: < 600ms).
βœ… HTML Payload Size
Raw HTML: 13.8KB (Target: < 150KB).
βœ… Text Compression
Compression enabled (gzip).
❌ Cache Policies
Missing Cache-Control headers.
βœ… CDN Usage
Edge delivery detected.
βœ… Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
βœ… Native Lazy Loading
Images use loading='lazy'.
βœ… Minified Assets
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
βœ… Character Set
UTF-8 declared.
πŸ›‘οΈ Security & Blacklist
Clean
βœ… Domain is clean.
βœ… Spamhaus DBLVerify β†—
Lookup inconclusive β€” use the Verify link to check manually.
βœ… SURBLVerify β†—
Not listed β€” no threats detected.
βœ… URIBLVerify β†—
Lookup inconclusive β€” use the Verify link to check manually.
βœ… Google Safe BrowsingVerify β†—
No unsafe content found per Google Safe Browsing.
βš™οΈ Technologies
CMS
Drupal
E-Commerce
Magento
Analytics & Tracking
Google AnalyticsGoogle Tag Manager
JavaScript
jQuery
Infrastructure & CDN
Cloudflare
πŸ“‹ WHOIS
Registrar
Rebel.ca Corp.
Registered
2000-11-24
Expires
2026-12-01
Last Updated
2026-01-15
Status
client transfer prohibited, client update prohibited
Name Servers
drew.ns.cloudflare.com, lucy.ns.cloudflare.com
πŸ”— DNS Records
TypeValue
A104.20.43.33
A172.66.168.53
MXperimeterinstitute-ca.mail.protection.outlook.com
TXTMS=ms66130783
TXTMS=ms79119458
TXT_globalsign-domain-verification=Jud5uGwQxQHG7FdoFM7qUMCNOuTYF9jBHMtmgUecUl
TXTatlassian-domain-verification=CxeaS/FDlivAHMq1tevwCv4hlQjgDBnxbjqLf6ZIhlbyWNOKfApOyBaeaGkhxepo
TXTcanva-site-verification=79wjt8xipc4k_hFd8FhBgg
TXTcloudflare_dashboard_sso=34618a4cb3ee3bf162d20103b76c34d1
TXTgoogle-site-verification=S-ZTGzBV-hrbYkwHQahC5k_XFu696NPvie_cNW0qj8c
TXTgoogle-site-verification=yEmZG4Zx-Stbv-mQvor6V3YnEN2XF6CMJSzDhcnTd7E
TXTopenai-domain-verification=dv-sSojqaPlkEpLmXd66ejHAI63
TXTpexip-ms-tenant-domain-verification=a8097707-5cb9-420b-b83c-c79faaa5c964
TXTv=spf1 a mx ip4:20.104.128.5 include:2636016.spf08.hubspotemail.net include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:amazonses.com include:em1472.perimeterinstitute.ca ~all
TXT81l1Xur
TXTMIC-123-SOF
TXTMS=ms43622443
NSlucy.ns.cloudflare.com
NSdrew.ns.cloudflare.com

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