peterlu.org

.org crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 423 ms crawled 2026-06-02

US · 185.199.110.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Peter J. Lu
Description: Peter J. Lu, post-doctoral research fellow in the Department of Physics and the School of Engineering and Applied Sciences at Harvard University.
Language: en

Technology

CDN: Fastly
Server: GitHub.com
CMS: Joomla
jQuery: 3.3.1 known XSS (<3.5)

Third-party hosts loaded (2)

code.jquery.com×1
w.soundcloud.com×1

DNS records live

NS

ns1.dreamhost.com
ns2.dreamhost.com
ns3.dreamhost.com

MX

0 mx1.mailchannels.net
0 mx2.mailchannels.net

Email authentication weak

SPF: v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-05-01 to 2026-07-30

Expires in 56 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://peterlu.org/

findings

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

Links to (10)

Linked from (1)

kociemba.org×1