hodlipson.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-16 · ok HTTP/1.1 200 3469 ms crawled 2026-05-16

US · 199.34.228.46 · AS27647 Weebly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Hod Lipson - Hod Lipson
Description: Home page of Hod Lipson, Prof. of Engineering, Columbia University
Language: en

Open Graph

url: https://www.hodlipson.com/
title: Hod Lipson
site name: Hod Lipson
description: Home page of Hod Lipson, Prof. of Engineering, Columbia University

Technology

CDN: Cloudflare

Social widgets

YouTube Embed

Third-party hosts loaded (2)

cdn2.editmysite.com×10
www.youtube.com×4

Social

Registration

Registrar

GoDaddy.com, LLC

Created

2014-01-27

Expires

2029-01-27 983 days left

Updated

2022-09-17

Name servers

ns15.domaincontrol.com
ns16.domaincontrol.com

DNS records live

NS

ns15.domaincontrol.com
ns16.domaincontrol.com

MX

0 smtp.secureserver.net
10 mailstore1.secureserver.net

TXT

google-site-verification=cCdpwlkcNgxJqO1YXGdg0hAiVQWCeYhWbP9jzLt_XSY

Email authentication weak

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

Certificate (current)

R12

from 2026-05-06 to 2026-08-04

Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.hodlipson.com/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy