johndcook.com
Expert consulting in applied mathematics & data privacy
Last scanned Aug 4, 2026, 10:00 AM · 11 views
Overall score
Excellent
Summary
Companies come to us for help data analysis and data privacy. This website uses WordPress hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.
Companies come to us for help data analysis and data privacy. Clients have included Amazon, Google, Microsoft, law firms, start-ups, and smaller businesses.
- United States
- Hosted on Cloudflare
Top issues to fix
2 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
SEO
1 issue(s) found
Performance
1.39 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
0 overall since Jul 27, 2026
- Overall
- 92
- SEO
- 90
- Security
- 90
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Companies come to us for help data analysis and data privacy. Clients have included Amazon, Google, Microsoft, law firms, start-ups, and smaller businesses.
Contact
Email, phone, and address published on this site's own pages.
- Phone
- 8324228646
Meta tags
- Title
- Expert consulting in applied mathematics & data privacy
- Description
- Companies come to us for help data analysis and data privacy. Clients have included Amazon, Google, Microsoft, law firms, start-ups, and smaller businesses.
- Canonical
- https://www.johndcook.com/blog/services-2/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width
- Robots meta
- max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 141.193.213.11
- ASN
- AS209242 (CLOUDFLARESPECTRUM - Cloudflare London, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.johndcook.com
- Valid from
- Jun 13, 2026
- Valid to
- Sep 11, 2026
- Days until expiry
- 38
- SAN domains
- www.johndcook.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 2 · H3 1
Links
28 internal · 0 external · 0 broken
Images
3 total · 0 missing alt
Scripts / Styles
7 scripts · 2 stylesheets
JS / CSS size
95.2 KB · 30.0 KB
Page size
51.2 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://johndcook.com
- Final URL
- https://www.johndcook.com/blog/services-2/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.38 s
- HTML size
- 51.2 KB
- Redirect chain
- https://johndcook.com → https://www.johndcook.com/ → https://www.johndcook.com/blog/services-2/
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Frequently asked questions
- What technology does johndcook.com use?
- johndcook.com is built with WordPress, jQuery, Google Analytics.
- Is johndcook.com secure (HTTPS)?
- Yes. johndcook.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 11, 2026.
- Who hosts johndcook.com?
- johndcook.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is johndcook.com's SEO score?
- johndcook.com scored 90/100 for SEO in the latest analysis (excellent).
- What is johndcook.com's overall website score?
- johndcook.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
- Has johndcook.com's score changed over time?
- johndcook.com's overall score has stayed steady at 92/100 since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card