nedbatchelder.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 653 ms crawled 2026-05-18

US · 208.113.159.94 · AS26347 New Dream Network, LLC

Reputation 100/100

Classifying

HTML metadata

Title

Ned Batchelder

Description

Ned Batchelder's personal web site, blog, writings, software, math, parenting, autism

Language

Feeds

RSS feed for Ned's blog RSS

Open Graph

title: Ned Batchelder
site name: Ned Batchelder
description: Ned Batchelder's personal web site, blog, writings, software, math, parenting, autism

Technology

Server: gunicorn

Analytics

Google Tag Manager

Third-party hosts loaded (3)

nedbat.wordpress.com×4
webmention.io×1
www.googletagmanager.com×1

Social

Contact

Email

ned@nedbatchelder.com

Registration

Registrar

DreamHost, LLC

Created

2001-02-20

Expires

2027-02-20 277 days left

Updated

2026-01-19

Name servers

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

DNS records live

NS

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

MX

10 in1-smtp.messagingengine.com
20 in2-smtp.messagingengine.com

TXT

google-site-verification=b55Uiyy266QdJZHDZsoVKtckzGyJz_4w6YUAfiMGOlk

Email authentication strong

SPF: v=spf1 include:spf.messagingengine.com ~all
softfail (~all)
DMARC: v=DMARC1; p=quarantine; pct=100; ruf=mailto:nedbat@fastmail.com; rua=mailto:re+ypwvyekrlo5@dmarc.postmarkapp.com; sp=none; aspf=r;
policy: quarantine · sp=none
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-11 to 2026-07-10

Expires in 52 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://nedbatchelder.com/

present

x-frame-options
x-content-type-options
referrer-policy
cross-origin-opener-policy

findings

missing HSTS
missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: no-referrer-when-downgrade
x-frame-options: DENY
x-content-type-options: nosniff
cross-origin-opener-policy: same-origin