Knock-Knock.net
Hacker ApprovedLive attack visualizer in Privacy & security
A free live map of bot scans and attacks hitting servers, shown in a colorful retro-style globe view that people find fun and beautiful.
A free live map of bot scans and attacks hitting servers, shown in a colorful retro-style globe view that people find fun and beautiful.
12 people gave an opinion
- recommend it
- 12
- criticize it
- 0
- approval share
- 100%
Recommended in 7 of 13 months
- November 2025: not recommended
- December 2025: recommended
- January 2026: not recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: not recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 12 people recommend itNeeds 10 or more, met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 7 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Colorful retro-style UI
“All presented in what I hope is a very cool UI.”
Comment from 26 Apr 2026 in “Show HN: Knock-Knock v2 – Visualizing bot attacks in multi-protocol Technicolor” “I love the use of color and the retro-style UI.”
Comment from 26 Apr 2026 in “Show HN: Knock-Knock v2 – Visualizing bot attacks in multi-protocol Technicolor” Globe view with HEAT style
“One of my favorite visualizations for this is to switch to the globe view and choose the HEAT style”
Comment from 15 Feb 2026 in “Show HN: Knock-Knock.net – Visualizing the bots knocking on my server's door” “The globe visualization really sells it”
Comment from 15 Feb 2026 in “Show HN: Knock-Knock.net – Visualizing the bots knocking on my server's door” Fun, artistic visualization of traffic
“Very fun site. Cool idea indeed. I think it's a neat piece of art.”
Comment from 15 Feb 2026 in “Show HN: Knock-Knock.net – Visualizing the bots knocking on my server's door” “Wow that's fucking beautiful, man.”
Comment from 16 Feb 2026 in “Show HN: Knock-Knock.net – Visualizing the bots knocking on my server's door”
What people said
13 of the 19 comments that mention it, newest first. Each links to the original comment.
“which has some cool live visualisations”
“You can also see a live view of the ASN/ISP leaderboard by going to https://knock-knock.net”
“I run an open source honeypot that collects these botnet scans and produces blocklists.”
“Over 3 million (bot interactions) served!”
“it runs smoothly even on an iPhone browser”
“I love the use of color and the retro-style UI.”
“All presented in what I hope is a very cool UI.”
“Wow that's fucking beautiful, man.”
“One of my favorite visualizations for this is to switch to the globe view and choose the HEAT style”
“Awesome, I loved it thanks for sharing it.”
“Very fun site. Cool idea indeed. I think it's a neat piece of art.”
“The globe visualization really sells it”
“Very nice! I am looking forward to many people running this.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.