bigbookapi.com

.com crawl

First seen 2026-04-17 · Last seen 2026-05-12 · ok HTTP/1.1 200 696 ms crawled 2026-05-12

US · 172.67.213.113 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Big Book API
Description: Big Book API is the only API for books you'll ever need.
Language: en

Technology

CDN: Cloudflare

Analytics

Plausible

Fonts

Google Fonts

Third-party hosts loaded (5)

contenthub.cloud×2
cdn.jsdelivr.net×1
fonts.googleapis.com×1
plausible.io×1
yoonoo.ai×1

Social

Registration

Registrar

Cloudflare, Inc.

Created

2023-04-06

Expires

2027-04-06 322 days left

Updated

2026-03-07

Name servers

iris.ns.cloudflare.com
will.ns.cloudflare.com

DNS records live

NS

iris.ns.cloudflare.com
will.ns.cloudflare.com

MX

43 route3.mx.cloudflare.net
95 route2.mx.cloudflare.net
99 route1.mx.cloudflare.net

TXT

postman-domain-verification=def4625958befdb59a46028656c21f53abf1f8225a62463384634dc63a3b9a5d1b00739f7150c1d0b9033ea06c9f1e6ea4888275a8f946b7f16cb6a78a6b44af
google-site-verification=cXGew5v4aga3eneLT2vDY_cQiIryfBDiU4eRQPiGHQc

Email authentication partial

SPF

v=spf1 include:_spf.mx.cloudflare.net ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:d398ee929e5d45e7987329d2f5376c20@dmarc-reports.cloudflare.net

policy: none (monitoring only)

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoZYnC8uASEMgw0KSqiW48ht0smgktwfZnoDPzRx/fNkD6qEoVIzOvz+unDee4CIAe51Q6laZcWDMVSGfYW…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDAVOz03kQrtPWK7X4KKGPUTTSfwxtc8VnoUlTiEp+llKPlQDUPZpKRsnJ8nKNHd0ruLY2C8eLFSiLLcSRX82QTTT…

selectors probed

Certificate (current)

WE1

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

Expires in 60 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://bigbookapi.com/

present

x-content-type-options
referrer-policy

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff