developertoleader.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-11 · ok HTTP/1.1 200 9443 ms crawled 2026-05-08

US · 66.33.60.66 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Developer to Leader Course: Become an Engineering Leader
Description: An online course with a course and a community that teaches you how to become a successful engineering leader and helps you transition to a manager, without prior leadership experience
Language: en
Canonical: http://localhost:3000

Technology

CDN: Vercel
CMS: Next.js

Analytics

Fathom
Google Tag Manager

Social widgets

YouTube Embed

Third-party hosts loaded (15)

res.cloudinary.com×4
cdn.usefathom.com×2
credibility-client.vercel.app×2
www.googletagmanager.com×2
cdn.volument.com×1
client.paritykit.com×1
datafa.st×1
f.convertkit.com×1
lmsqueezy.com×1
load.fomo.com×1
localhost×1
modest-ghoul-88.clerk.accounts.dev×1
tally.so×1
www.loom.com×1
www.youtube.com×1

Social

Registration

Registrar

NameCheap, Inc.

Created

2023-02-11

Expires

2027-02-11 267 days left

Updated

2026-02-16

Name servers

ns1.vercel-dns.com
ns2.vercel-dns.com

DNS records live

NS

ns1.vercel-dns.com
ns2.vercel-dns.com

TXT

google-site-verification=K6tLT-Yc_NVNrDcDaFn77aSjTUjqhWnrgOY97EOviMI

Email authentication no MX

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

Certificate (current)

R12

from 2026-05-02 to 2026-07-31

Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.developertoleader.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=63072000