ptable.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-12 · ok HTTP/1.1 200 749 ms crawled 2026-05-04

US · 172.67.70.226 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

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.
Language: en-US
Canonical: https://ptable.com/?lang=en

Open Graph

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.

Technology

CDN: Cloudflare

Social

Registration

Registrar

Cloudflare, Inc.

Created

2006-07-08

Expires

2026-10-22 155 days left

Updated

2025-09-22

Name servers

dara.ns.cloudflare.com
elliot.ns.cloudflare.com

DNS records live

NS

dara.ns.cloudflare.com
elliot.ns.cloudflare.com

MX

0 202195045.pamx1.hotmail.com

TXT

Show 4 TXT records

google-site-verification=YrZgk1Bu4pK49pupANJmBRNaMcmsQwfw8_3f_gn0a9A
v=spf1 include:outlook.com a:ptable.com -all
ENS1 dnsname.ens.eth 0x927276D8486Bd20Fdf2F5c53Fa2191a2B3D782eF
MS=ms2021950453

Certificate (current)

WE1

from 2026-04-18 to 2026-07-17

Expires in 58 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://ptable.com/

present

strict-transport-security
x-content-type-options

findings

missing Content Security Policy
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
strict-transport-security: max-age=15552000; includeSubDomains; preload