indexo.dev

sylvain.co

.co ok HTTP/1.1 200 330 ms

First seen 2026-06-16 · Last seen 2026-06-17 · crawled 2026-06-17

US · 75.2.60.5 · AS16509 Amazon.com, Inc.

Reputation 100/100

sector other type homepage

HTML metadata

Title
SYLVAIN
Description
Creating new value for the Now, Novel, and Next.
Language
en-us

Open Graph

url
https://sylvain.co/
title
SYLVAIN
site name
SYLVAIN
description
Creating new value for the Now, Novel, and Next.

Contact

Technology

CDN
Netlify
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • identity.netlify.com×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • dan.ns.cloudflare.com
  • nola.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
  • 5 alt3.aspmx.l.google.com
Verified for
  • Anthropic
  • Apple
  • Google

Email authentication strong

SPF
v=spf1 include:_spf.google.com include:servers.mcsv.net include:mg-spf.greenhouse.io ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; rua=mailto:DMARC@sylvain.co; pct=100; adkim=s; aspf=s
policy: reject (enforced)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkVo5ExGZDHHNO6TgAhgw3unbrd1VW8wMCMirTBwslS/Ay4mfZl8TXETYJiH29nQpxZ9KScApbCps5p…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

YE1
from 2026-06-02 to 2026-08-31
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://sylvain.co/

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=31536000

Links to (9)

Linked from (1)

Use this data via API

Everything on this page for sylvain.co is available as JSON from the indexo.dev REST & MCP API.

curl "https://indexo.dev/api/v1/domains/sylvain.co" \
  -H "X-API-Key: idx_..."

Read the docs & get a free key →

Add a badge to your site

Own sylvain.co? Show it's tracked on indexo.dev and link visitors straight to this page.

indexo.dev — sylvain.co

<a href="https://indexo.dev/sylvain.co" target="_blank" rel="noopener">
  <img src="https://indexo.dev/sylvain.co/badge.svg" alt="indexo.dev — sylvain.co">
</a>