indexo.dev

arrowrbook.com

.com crawl

First seen 2026-05-09 · Last seen 2026-05-15 · ok HTTP/1.1 200 632 ms crawled 2026-05-15

US · 185.199.109.153 · AS54113 Fastly, Inc.

Reputation 92/100 no dmarc policy

sector tech type homepage

HTML metadata

Title
Scaling Up With R and Arrow
Language
en
Generator
quarto-1.7.31

Technology

CDN
Fastly
Server
GitHub.com
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Social

Registration

Registrar
Tucows Domains Inc.
Created
2024-01-19
Expires
2028-01-19 610 days left
Updated
2024-12-19
Name servers
  • ns1.hover.com
  • ns2.hover.com

DNS records live

NS
  • ns1.hover.com
  • ns2.hover.com
MX
  • 10 mx.hover.com.cust.hostedemail.com

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-06 to 2026-07-05
Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://arrowrbook.com/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31556952

Links to (1)

Linked from (2)