Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.26.5.138 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.26.5.138
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 8.4 ms |
| TCP Connect | 10.4 ms |
| TLS Handshake | 9.5 ms |
| Time To First Byte (TTFB) | 56 ms |
| Content Download | 3.9 ms |
| Total Response Time | 59.9 ms |
DNS Lookup 8.4 ms
TCP Connect 10.4 ms
TLS Handshake 9.5 ms
Time To First Byte (TTFB) 56 ms
Content Download 3.9 ms
Total Response Time 59.9 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=15552000; includeSubDomains; preload |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=15552000; includeSubDomains; preload
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Periodic Table - Ptable |
| Meta 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 |
| Open Graph Title | Periodic Table - Ptable |
| Open Graph Description | Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups. |
| Open Graph Image | https://ptable.com/icon/pt-square-192.png |
| Twitter Card | summary |
Title Periodic Table - Ptable Meta 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 Open Graph Title Periodic Table - Ptable Open Graph Description Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups. Open Graph Image https://ptable.com/icon/pt-square-192.png Twitter Card summary Detected Technologies
| Technology | Google Analytics Cloudflare |
Technology Google Analytics Cloudflare
HTTP Headers
| Date
| Thu, 27 Aug 2026 10:35:33 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Cf-ray
| a31a6e1d885cbb18-CDG |
| Cf-cache-status
| HIT |
| Age
| 40107 |
| Cache-control
| max-age=43200 |
| Content-language
| en |
| Etag
| W/"17a8f-65593f4c3dde9-br" |
| Expires
| Thu, 27 Aug 2026 11:27:05 GMT |
| Last-modified
| Wed, 01 Jul 2026 22:10:15 GMT |
| Server
| cloudflare |
| Strict-transport-security
| max-age=15552000; includeSubDomains; preload |
| Vary
| Accept-Encoding, accept-language |
| X-content-type-options
| nosniff |
| Report-to
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| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Content-encoding
| gzip |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Description | Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups. |
| Viewport | width=device-width, initial-scale=1, user-scalable=no |
| Theme-color | #0276FD |
| Format-detection | telephone=no |
| Mobile-web-app-capable | yes |
| Apple-mobile-web-app-capable | yes |
| Monetization | $ilp.uphold.com/Bw3wHNJbi7YJ |
Date Thu, 27 Aug 2026 10:35:33 GMT
Content-type text/html; charset=UTF-8
Cf-ray a31a6e1d885cbb18-CDG
Cf-cache-status HIT
Age 40107
Cache-control max-age=43200
Content-language en
Etag W/"17a8f-65593f4c3dde9-br"
Expires Thu, 27 Aug 2026 11:27:05 GMT
Last-modified Wed, 01 Jul 2026 22:10:15 GMT
Server cloudflare
Strict-transport-security max-age=15552000; includeSubDomains; preload
Vary Accept-Encoding, accept-language
X-content-type-options nosniff
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Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Content-encoding gzip
Alt-svc h3=":443"; ma=86400
