ptable.com
Periodic Table - Ptable
Last scanned Jul 26, 2026, 12:19 PM
Overall score
Great
Summary
Interactive periodic table showing names, electrons, and oxidation states. This website uses Google Ads behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Top issues to fix
7 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.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
4 issue(s) found
Performance
52 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Meta tags
- Title
- Periodic Table - Ptable
- Description
- Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
- Canonical
- https://ptable.com/?lang=en
- Language
- en-US
- Charset
- Viewport
- width=device-width, initial-scale=1, user-scalable=no
- Robots meta
- Manifest
- https://ptable.com/manifest/ptable.en.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- ptable.com
- Valid from
- Jun 16, 2026
- Valid to
- Sep 14, 2026
- Days until expiry
- 47
- SAN domains
- ptable.com, *.ptable.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
11 internal · 32 external · 20 broken
Images
1 total · 0 missing alt
Scripts / Styles
4 scripts · 1 stylesheets
JS / CSS size
1.2 KB · 31.4 KB
Page size
94.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://ptable.com
- Final URL
- https://ptable.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 51 ms
- HTML size
- 94.6 KB
- Redirect chain
- https://ptable.com
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Frequently asked questions
- What technology does ptable.com use?
- ptable.com is built with Google Ads.
- Is ptable.com secure (HTTPS)?
- Yes. ptable.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 14, 2026.
- Who hosts ptable.com?
- Hosting provider information for ptable.com is not available yet.
- What is ptable.com's SEO score?
- ptable.com scored 75/100 for SEO in the latest analysis (fair).
- What is ptable.com's overall website score?
- ptable.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card