bigthink.com

.com toplist crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 650 ms crawled 2026-05-18

US · 172.66.171.144 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Big Think - Smarter, Faster
Description: Learn from the world's biggest thinkers.
Language: en-US
Generator: WordPress 6.9.4
Canonical: https://bigthink.com/

Open Graph

url: https://bigthink.com/
title: Big Think
locale: en_US
site name: Big Think
description: Learn from the world's biggest thinkers.

Technology

CDN: Cloudflare
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (4)

cdn.jwplayer.com×1
gmpg.org×1
stats.wp.com×1
www.googletagmanager.com×1

Social

Registration

Registrar

GoDaddy.com, LLC

Created

1997-01-24

Expires

2030-01-25 1346 days left

Updated

2025-01-26

Name servers

frank.ns.cloudflare.com
liv.ns.cloudflare.com

DNS records live

NS

frank.ns.cloudflare.com
liv.ns.cloudflare.com

MX

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx2.googlemail.com
30 aspmx3.googlemail.com

TXT

Show 14 TXT records

MS=ms59457489
_globalsign-domain-verification=1bIUeFQan6DwxRMFkfSsKamrhvJLH8zU49c1PDyHi5
_globalsign-domain-verification=2wRqY6IrIINLY7B8Qcp-qur9HsiRTO04g4gwsMmFy3
_globalsign-domain-verification=oQMq_G3Amhi22taxA9iFT-dk_zHARxA27Z0jygBZzo
anthropic-domain-verification-3yr2nb=R61RWTRp7eKATMAWS6ysnSgTL
apple-domain-verification=Y0jnqEg4a6CbdYpz
atlassian-domain-verification=Sy2DdmSX6vjBKYnPktlBtM0HVxilSLu427CbTKyytLpHVd9daKw3DMdjJ0ZLLP4V
brave-ledger-verification=91274b2f4b86d4e567f1bfac3af2939e17f3789e9149f42a54e22b6c6a4ddfa5
e4bo424u3f58fnv2geanpla4r5
facebook-domain-verification=imnsr6iaawlgvto58dd99ywxgdfkmr
google-site-verification=Ag1fG5O40z3867zln2At8HXynDGkVy-PFYrn4TV43n8
google-site-verification=IQ0Q3-snTXtmIPmqxY4XEk-ucnIk9H_LTPldZQ384-o
google-site-verification=mrT_skiiLc7lMHOIVrlqYIfL_7dqokcf255Bv4E7Dqg
p6wbgj4mp14fnw67x42pd3bjjtk60ppk

Email authentication strong

SPF

v=spf1 a mx include:servers.mcsv.net include:_spf.google.com include:mailgun.org -all

strict (-all)

DMARC

v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@bigthink.com

policy: reject (enforced)

DKIM

Show 4 DKIM selectors

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqWjWSf0C02C5azdc/6gmpGrctAKap/uPujzPHXJsm3hj7EOrfRzmGpHavwr3yOPL8/9zZv9Lm+ecvB…
k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
smtpapi: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76…

selectors probed

Certificate (current)

WE1

from 2026-04-16 to 2026-07-15

Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://bigthink.com/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy