swizec.com

.com crawl

First seen 2026-06-02 · Last seen 2026-06-03 · ok HTTP/1.1 200 244 ms crawled 2026-06-02

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Swizec Teller
Description: Swizec shares software engineering lessons from production in his books, articles, talks, and workshops
Language: en-us
Generator: Gatsby 5.12.11

Open Graph

url: https://swizec.com
title: Swizec Teller
description: Swizec shares software engineering lessons from production in his books, articles, talks, and workshops

Technology

CDN: Vercel
CMS: Gatsby 5.12.11

Analytics

Plausible

Third-party hosts loaded (1)

plausible.io×2

Social

Contact

Email

hi@swizec.com

Registration

Registrar

NameCheap, Inc.

Created

2005-06-02

Expires

2031-06-02 1822 days left

Updated

2022-06-01

Name servers

dns1.registrar-servers.com
dns2.registrar-servers.com

DNS records live

NS

dns1.registrar-servers.com
dns2.registrar-servers.com

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

Verified for

Google
Meta

Email authentication partial

SPF

v=spf1 include:_spf.google.com ~all

softfail (~all)

DMARC

v=DMARC1; p=none;

policy: none (monitoring only)

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxs34q6Enwgcz2KnhUJn0H6k0mD6P55ZhckRmo+2VUxa2vaob/kwEvQKzH98dUczeKrTLKSf3+9RguB…

selectors probed

Certificate (current)

R12

from 2026-05-25 to 2026-08-23

Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://swizec.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