Kafka on Hacker News
How Kafka changed in Hacker News story titles from 2007 through 2026, with annual title share, peak year, sources, and coverage limits.
Data through 2026-07-13
In 2025, Kafka appeared in 0.057% of Hacker News story titles. Its share rose by 0.004 percentage points from 2024. The series peaks in 2019 at 0.086%.
Annual title share
Each value is the share of all retained Hacker News story titles in that calendar year matching this topic's bounded title pattern. Different topics can overlap.
| Year | Share of story titles | Coverage |
|---|---|---|
| 2007 | 0.000% | Full year |
| 2008 | 0.002% | Full year |
| 2009 | 0.005% | Full year |
| 2010 | 0.005% | Full year |
| 2011 | 0.002% | Full year |
| 2012 | 0.005% | Full year |
| 2013 | 0.006% | Full year |
| 2014 | 0.017% | Full year |
| 2015 | 0.034% | Full year |
| 2016 | 0.070% | Full year |
| 2017 | 0.066% | Full year |
| 2018 | 0.064% | Full year |
| 2019 | 0.086% | Full year |
| 2020 | 0.075% | Full year |
| 2021 | 0.053% | Full year |
| 2022 | 0.040% | Full year |
| 2023 | 0.054% | Full year |
| 2024 | 0.053% | Full year |
| 2025 | 0.057% | Full year |
| 2026 | 0.042% | Partial live year |
Explore and verify
Open Kafka in the Attention Lab. Read the methodology and verification ledger. Source records come from the official Hacker News API ↗.
Annual values are each topic's share of that year's HN story titles. The live year is partial; any sampled years are labeled and remain share-normalized.