physlink.com
PhysLink.com: Physics and Astronomy Online
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Excellent
Summary
Physics news, reference, education articles, job board, physics fun, and more. This website uses Google Analytics hosted on OVH - OVH SAS, FR. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Physics news, reference, education articles, job board, physics fun, and more. Most popular physics and astronomy online portal since 1995!
- United States
- Hosted on OVH - OVH SAS, FR
Top issues to fix
5 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.
5 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
3 issue(s) found
Performance
543 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Physics news, reference, education articles, job board, physics fun, and more. Most popular physics and astronomy online portal since 1995!
Meta tags
- Title
- PhysLink.com: Physics and Astronomy Online
- Description
- Physics news, reference, education articles, job board, physics fun, and more. Most popular physics and astronomy online portal since 1995!
- Canonical
- https://www.physlink.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://cdn.physlink.com/images/ico/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- OVH - OVH SAS, FR
- CDN provider
- —
- IP address
- 51.81.154.170
- ASN
- AS16276 (OVH - OVH SAS, FR)
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
- physlink.com
- Valid from
- Aug 10, 2026
- Valid to
- Nov 8, 2026
- Days until expiry
- 75
- SAN domains
- physlink.com, www.physlink.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 5 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 2
Links
75 internal · 8 external · 0 broken
Images
15 total · 0 missing alt
Scripts / Styles
29 scripts · 12 stylesheets
JS / CSS size
776 KB · 69 B
Page size
51.5 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 4
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://physlink.com
- Final URL
- https://www.physlink.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 542 ms
- HTML size
- 51.5 KB
- Redirect chain
- https://physlink.com → https://www.physlink.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does physlink.com use?
- physlink.com is built with Bootstrap, jQuery, Google Analytics, Google Ads.
- Is physlink.com secure (HTTPS)?
- Yes. physlink.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 8, 2026.
- Who hosts physlink.com?
- physlink.com is hosted on OVH - OVH SAS, FR.
- What is physlink.com's SEO score?
- physlink.com scored 80/100 for SEO in the latest analysis (great).
- What is physlink.com's overall website score?
- physlink.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card