netfilter.org

NetFilter.org Packet filtering framework for the Linux operating systems

But netfilter/iptables wouldn't be what it is today if it wasn't for the numerous contributions by independent software developers, whom we call as a reward for people who helped us a lot - but lately it became too much effort to maintain this scoreboard.

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Authority

73/100

Safety

90/100

Registered

Mar 17, 2000

26 years old · CSL Computer Service Langenbach GmbH d/b/a joker.com

On record

since 2006

3 of 4 safety checks passed (Sep 17, 2026).

AboutUs has not vetted this site. 1 of 4 automated safety check did not pass. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.

Current facts

Latest available measurements; dated entries retain their dates. These are measurements, not an endorsement of the site.

Authority & Safety, with the evidence

How this is scored →

Authority 73/100 — ahead of 73% of the August 2026 scored sampleClear

Why this authority score

Prominence (Tranco rank #40,596)+8
Verified continuity: 26.5 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+15

These lines explain the underlying model score of 37/99, which is what places this site at 73/100 using the August 2026 scored sample. Public Authority is capped at 99.

Safety evidence

No unexpired threat-feed result; name-similarity check available (recorded about 27 days ago); 3/3 transport and email checks available (oldest recorded about 27 days ago). This is evidence coverage, not a probability that a website is safe.

Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date; self-description below is the 2013 record.

2000
Domain registered (Mar 17, 2000).
2006
First tracked by AboutUs (Jun 21, 2006); profile edited 2 times through 2013.
2013
Self-description at the time:
“NetFilter.org Packet filtering framework for the Linux operating systems”
2026
Checked today — 3 of 4 safety checks passed (Sep 17, 2026).

✓ domain continuity 26 years registered✓ live verified Sep 17, 2026

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