yan-holtz.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-13 · ok HTTP/1.1 200 4576 ms crawled 2026-05-10

FR · 213.186.33.5 · AS16276 OVH SAS

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Yan Holtz | Data - Science - Viz
Description: Welcome to Yan Holtz's homepage. I'm a I'm a data analysis and visualisation enthousiast with a background in biology.
Language: en

Open Graph

url: https://www.yan-holtz.com
title: Yan Holtz | Data - Science - Viz
description: Welcome to Yan Holtz's homepage. I'm a I'm a data analysis and visualisation enthousiast with a background in biology.

Technology

CDN: Fastly
Server: GitHub.com

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (6)

fonts.googleapis.com×4
prodigious-trailblazer-3628.ck.page×2
unpkg.com×2
www.googletagmanager.com×2
d3js.org×1
widget.senja.io×1

Social

Registration

Registrar

OVH sas

Created

2018-07-27

Expires

2026-07-27 69 days left

Updated

2025-07-28

Name servers

dns112.ovh.net
ns112.ovh.net

DNS records live

NS

dns112.ovh.net
ns112.ovh.net

MX

1 mx0.mail.ovh.net
100 mx3.mail.ovh.net
5 mx1.mail.ovh.net
50 mx2.mail.ovh.net

TXT

google-site-verification=HytFQp6aHxNo-btQDgEkfUEX4RuM1bv6L_KBYJn21XI
google-site-verification=aucHMR02SEX08vL-a5jYTfWNq2d4i0UXs75JYU06kf8
1|www.yan-holtz.com

Email authentication partial

SPF: v=spf1 include:mx.ovh.com ~all
softfail (~all)
DMARC: v=DMARC1; p=none;
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificates

Loading certificate

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.yan-holtz.com/

findings

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

Links to (27)

Linked from (8)