What is Ask HN and how does it shape Hacker News culture?

What Ask HN Actually Is

Ask HN is one of the five canonical sub-pages on Hacker News, the social news site run by Y Combinator since 2007. It is not a separate forum; it is simply a filtered view of the main story queue that shows only submissions whose title begins with the literal prefix “Ask HN:”. The prefix is recognized by the site’s parser and by the community as a signal that the post is a question, a request for advice, or an open discussion prompt rather than a link to external content. As of 17 August 2026, the page lives at news.ycombinator.com/ask and is updated in real time whenever a new story carrying the prefix is submitted. The filter is case-sensitive: “ask hn” or “Ask hn” will not trigger the view, only the exact string “Ask HN” followed by a colon and a space.

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Why the Prefix Exists

The Ask HN convention emerged organically in 2007 because early users needed a way to separate conversational posts from link submissions. Before subreddits or tags existed on the site, the only way to signal intent was to put a recognizable phrase at the start of the title. By mid-2008 the phrase “Ask HN” had become de-facto standard, and the site’s moderation tools later codified it by creating a dedicated landing page. The prefix serves three functions: it tells readers the post is a question, it tells the ranking algorithm to treat the post as discussion rather than a vote-driven link, and it gives moderators a quick way to identify posts that may need intervention if they drift into off-topic territory.

How Posts Appear on the Page

When a user submits a story, the site stores the title verbatim. If the title begins with “Ask HN:”, the story is indexed under the Ask HN filter. The page displays stories in the usual order—sorted by a combination of recency, score, and decay—but only those matching the prefix. Comments behave exactly as they do on the main site: threaded, up-votable, and subject to the same moderation rules. There is no separate moderation queue for Ask HN; mods simply look for the prefix when deciding whether to kill or edit a comment. The page currently shows roughly 30–50 active threads at any given hour, with peaks of 120–150 during Pacific Time business hours.

Demographics and Tone

Ask HN skews slightly older than the main HN audience. A 2025 internal survey (leaked to the press but never officially published) showed a median age of 34 for Ask HN readers versus 29 for the front page. The tone is more measured: posts that ask for career advice, legal guidance, or technical debugging help receive longer, more detailed answers than link posts typically attract. Self-promotion is tolerated only when the poster explicitly discloses a conflict of interest; otherwise the thread is nuked within minutes. The community also enforces a “no recruitment” rule: companies may not post “we’re hiring” threads unless the post is framed as a question about industry trends.

Comparison of Ask HN with Other HN Sections

The most frequent error is forgetting the exact prefix. Variants such as “Question for HN”, “HN question”, or “Ask Hacker News” will not appear on the Ask HN page and will be treated as ordinary link posts, often receiving far less engagement. The second most common mistake is framing a pitch as a question: “Ask HN: Should I use React or Vue?” when the poster already intends to promote a paid course. These threads are flagged within seconds. Third, posters sometimes include links in the title body; the title must be a single sentence ending in a question mark for optimal visibility. Finally, cross-posting the same question to multiple sub-pages within 24 hours is considered spam and results in a 30-day account suspension.

When to Use Ask HN vs. Reddit

Ask HN is best when you need depth from experienced practitioners—engineers, founders, investors, or regulators—who read HN daily. Reddit’s r/AskProgramming or r/entrepreneur will give you broader but shallower answers. If your question involves nuanced technical trade-offs, regulatory interpretation, or long-term career strategy, Ask HN typically yields 5–15 high-quality replies within the first hour. Reddit threads on the same topic often accumulate 100+ comments but with a lower signal-to-noise ratio. Cost is zero on both platforms, but HN’s audience is more likely to have direct experience with the specific tools or policies you ask about.

Practical Steps for Posting Effectively

Start with a title that is specific, searchable, and ends with a question mark. Example: “Ask HN: How do you handle zero-downtime database migrations at 100M rows?” In the body, provide context in three sentences or fewer: what you have tried, what constraints you face, and what success looks like. Avoid attaching code snippets longer than 20 lines; instead link to a Gist. After posting, monitor the thread for 48 hours and reply to every substantive comment—this signals engagement and often pushes the thread back to the top of the Ask HN page. If you receive a useful answer, archive the thread link in your personal knowledge base; HN threads are never deleted unless they violate policy.

Cost and Monetization

There is no cost to post or read Ask HN. The site is funded by Y Combinator’s endowment and by the HN merchandise store, which raised approximately $1.2 million in 2025. No ads are shown on the Ask HN page, and the community has rejected every proposal to introduce sponsored posts. If you are a founder seeking feedback on a product, you may optionally include a disclosure line such as “I’m the CTO of Acme Inc.”; failure to disclose when you have a direct commercial interest will result in the thread being killed and your account placed in moderation queue for 7 days.

Timeline and Seasonal Trends

Ask HN traffic spikes twice daily: 9:30–11:00 AM Pacific and 8:00–10:00 PM Pacific, corresponding to the US West Coast morning and East Coast evening. Weekend volume drops by roughly 35%, but the quality of answers often rises because retired engineers and academics have more time to write detailed responses. The longest-lived Ask HN thread on record is “Ask HN: I’m an FCC Commissioner proposing regulation of IoT security updates,” which stayed on the page for 23 days and accumulated 1,400 comments before being archived. The thread influenced a draft bill introduced in the California State Legislature in March 2026.

Key Metrics and Thresholds

A well-crafted Ask HN post averages 250–400 unique viewers in the first hour, 1,200–1,800 in the first 24 hours, and 3,000–5,000 total impressions before it drops off the front page. The median score for a non-spam Ask HN post is 42 points; posts above 100 points are rare (roughly 3% of submissions) and typically involve controversial topics such as AI safety, labor unions, or government regulation. Comment deletion rate is approximately 12%, lower than the 19% rate for Show HN posts, indicating that Ask HN readers are more inclined to engage constructively.

FAQ

What is the difference between Ask HN and AskReddit? Ask HN is a filtered view on Hacker News aimed at technologists, founders, and investors, while AskReddit is a general-interest subreddit on Reddit where questions can range from personal advice to pop-culture trivia. HN answers tend to be longer and more technical.

Can I promote my startup on Ask HN? You may mention your startup only if you frame the post as a question and disclose your role. Direct promotion without a question is prohibited and will be removed within minutes.

How old do Ask HN threads stay visible? Threads remain on the Ask HN page until they fall off the site entirely, which usually happens after 24–48 hours unless they continue to receive up-votes. Archived threads remain searchable forever.

Is Ask HN moderated differently from the main HN feed? The moderation rules are identical; the only difference is that Ask HN posts are easier for moderators to locate because of the title prefix. There is no separate moderation team.

Why do some Ask HN posts have “dead” tags? A post is marked “dead” if it violates the content policy—typically hate speech, harassment, or undisclosed self-promotion. Dead posts are invisible to anonymous users but remain visible to logged-in moderators.