coursebud.io

.io crawl

First seen 2026-04-18 · Last seen 2026-05-12 · ok HTTP/1.1 200 9843 ms crawled 2026-05-12

US · 34.237.161.9 · AS14618 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Turn your book into an online course — CourseBud
Description: Upload your book, our AI converts it into a structured online course with lessons, quizzes, and slides. Host on CourseBud and sell to your own students. $199 setup, $19/mo.
Language: en
Canonical: https://www.coursebud.io/

Open Graph

url: https://www.coursebud.io/
title: Turn your book into an online course
description: Upload your book, our AI converts it into a structured online course with lessons, quizzes, and slides. Host on CourseBud and sell to your own students. $199 setup, $19/mo.

Technology

Server: nginx
CMS: Gatsby

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (5)

cdn.jsdelivr.net×3
fonts.googleapis.com×2
fonts.gstatic.com×1
www.archieboy.com×1
www.googletagmanager.com×1

Contact

Phone

+19786438662

Address

st Rd STE 11Marlborough, MA 01752

DNS records live

NS

ns09.domaincontrol.com
ns10.domaincontrol.com

MX

10 mail.archieboy.com

TXT

google-site-verification=WiaBCO4GPS4O0Sw6o2d4SilbT5FIbQkJhHaNWogJHJk

Email authentication partial

SPF

v=spf1 ip4:50.19.253.54 ip4:34.237.161.9 ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:drbo@archieboy.com

policy: none (monitoring only)

DKIM

default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3RayHe6JyJ5PupWQsD8H3M+XQ+YvgobXqeq2Db1p2i227auEITuhCi0r0Q+vCJBmgtn+zac+eAoToY…

selectors probed

Certificate (current)

from 2026-04-17 to 2026-07-16

Expires in 58 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.coursebud.io/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy

findings

CSP allows unsafe inline scripts/styles
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
content-security-policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net https://www.googletagmanager.com https://www.google-analytics.com https://connect.facebook.net https://challenges.cloudflare.com; style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net https://fonts.googleapis.com; font-src 'self' data: https://cdn.jsdelivr.net https://fonts.gstatic.com; img-src 'self' data: https:; media-src 'self'; connect-src 'self' https://www.google-analytics.com https://region1.google-analytics.com https://www.googletagmanager.com https://connect.facebook.net https://challenges.cloudflare.com; frame-src https://challenges.cloudflare.com; frame-ancestors 'self'; base-uri 'self'; form-action 'self' https://checkout.stripe.com https://www.paypal.com
strict-transport-security: max-age=31536000; includeSubDomains