indexo.dev

kvinogradov.com

.com crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 230 ms crawled 2026-06-03

US · 104.21.6.111 · AS13335 Cloudflare, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Konstantin Vinogradov — VC Investor in Open Source, AI and Infrastructure Software
Description
Konstantin Vinogradov — VC investor in open source, AI, and infrastructure. Notes on venture capital investments, tech startups, open source and philanthropy.
Language
en
Canonical
https://kvinogradov.com/
Feeds

Open Graph

url
https://kvinogradov.com/
title
Konstantin Vinogradov
locale
en_US
site name
Konstantin Vinogradov
description
Konstantin Vinogradov — VC investor in open source, AI, and infrastructure. Notes on venture capital investments, tech startups, open source and philanthropy.

Technology

CDN
Cloudflare
Analytics
  • Cloudflare Insights

Third-party hosts loaded (2)

  • static.cloudflareinsights.com×2
  • openpanel.dev×1

Social

Registration

Registrar
NameCheap, Inc.
Created
2024-01-17
Expires
2029-01-17 956 days left
Updated
2024-06-18
Name servers
  • junade.ns.cloudflare.com
  • sky.ns.cloudflare.com

DNS records live

NS
  • junade.ns.cloudflare.com
  • sky.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
Verified for
  • Google

Email authentication strong

SPF
v=spf1 include:_spf.google.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:d0d84219b2b4453a856d819390897f52@dmarc-reports.cloudflare.net
policy: quarantine
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu4m6LdoGtBjU7T5kY9dlhVhXplFwMIZSTjrFqmOhpS26ujnbXwpBBw7ijtotaqRhbtuRqOq474jQ7K…
selectors probed

Certificate (current)

WE1
from 2026-04-29 to 2026-07-28
Expires in 52 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://kvinogradov.com/

present
  • strict-transport-security
  • x-content-type-options
  • referrer-policy
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-content-type-options
nosniff
strict-transport-security
max-age=0

Links to (10)

Linked from (1)

Use this data via API

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

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

Read the docs & get a free key →