cost-g.org

.org crawl

First seen 2026-06-02 · Last seen 2026-06-02 · ok HTTP/1.1 200 215 ms crawled 2026-06-02

FR · 109.234.165.77 · AS50474 O2switch SAS

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: COST-G | Combination Service for Time-variable Gravity Fields

Technology

Server: o2switch-PowerBoost-v3

Analytics

Google Tag Manager

Third-party hosts loaded (2)

maxcdn.bootstrapcdn.com×1
www.googletagmanager.com×1

Registration

Registrar

Scaleway SAS

Created

2019-01-19

Expires

2027-01-19 228 days left

Updated

2026-05-11

Name servers

ns1.o2switch.net
ns2.o2switch.net

DNS records live

NS

ns1.o2switch.net
ns2.o2switch.net

MX

0 cost-g.org

Email authentication weak

SPF

v=spf1 +a +mx +ip4:109.234.165.77 +ip4:109.234.163.0/24 ~all

softfail (~all)

DMARC

not published

DKIM

default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAysygJBjBCs5MKih24gxto1DQMWi4grSHAxRMFuPgleH5kdXzX4wwghwjCOLU2An9qPEhN/qVFAAb5f…

selectors probed

Certificate (current)

R13

from 2026-05-11 to 2026-08-09

Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://cost-g.org/

findings

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