indexo.dev

05f5.com

.com crawl

First seen 2026-05-18 · Last seen 2026-05-19 · ok HTTP/1.1 200 4516 ms crawled 2026-05-23

US · 185.199.111.153 · AS54113 Fastly, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Welcome! | Open Source Founders Summit
Description
The conference about building financially successful and sustainable open source companies.
Language
en
Canonical
https://05f5.com/
Feeds

Open Graph

title
Welcome!
description
The conference about building financially successful and sustainable open source companies.

Technology

CDN
Fastly
Server
GitHub.com

Social

Contact

Email

Registration

Registrar
Gandi SAS
Created
2024-01-05
Expires
2027-01-05 215 days left
Updated
2025-12-05
Name servers
  • ns-187-b.gandi.net
  • ns-198-a.gandi.net
  • ns-247-c.gandi.net

DNS records live

NS
  • ns-187-b.gandi.net
  • ns-198-a.gandi.net
  • ns-247-c.gandi.net
MX
  • 10 spool.mail.gandi.net
  • 50 fb.mail.gandi.net

Email authentication partial

SPF
v=spf1 include:_mailcust.gandi.net ?all
neutral (?all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
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://05f5.com/

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

Links to (7)

Linked from (1)