fltk.org

.org crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 6488 ms crawled 2026-05-19

US · 173.230.155.139 · AS63949 Akamai Connected Cloud

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title

Fast Light Toolkit - Fast Light Toolkit (FLTK)

Feeds

FLTK RSS RSS

Technology

Server: Apache

Social

Registration

Registrar

GoDaddy.com, LLC

Created

1999-02-16

Expires

2029-02-16 1003 days left

Updated

2024-07-14

Name servers

ns1.linode.com
ns2.linode.com
ns3.linode.com
ns4.linode.com
ns5.linode.com

DNS records live

NS

ns1.linode.com
ns2.linode.com
ns3.linode.com
ns4.linode.com
ns5.linode.com

MX

10 fltk.org

Email authentication partial

SPF

v=spf1 a -all

strict (-all)

DMARC

v=DMARC1; p=none

policy: none (monitoring only)

DKIM

default: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwr8H0Rpx6PcbewqMY0TRMHfSzLFmb/iQlzgQusx2I52rkkqVG8FhkBu6sM+yJtsSCOAg9qWv1ct+E+tt…

selectors probed

Certificate (current)

R13

from 2026-05-02 to 2026-07-31

Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.fltk.org/

findings

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