Stack Exchange
Platform · this deep dive is built from the official pages of the platform itself and of the tools that support it.
Overview
Stack Exchange is a network of question-and-answer sites run by the company Stack Exchange, Inc. The platform describes itself briefly: «we make Stack Overflow and 170+ other community-powered Q&A sites». Formally this is not a forum: a topic is closed by an accepted answer, conversation "just to talk" is not provided for, and editing other people's texts is common practice.
For marketing the platform matters not for its size but for how thoroughly its rules on self-promotion are written down. Most forums stop at the phrase "advertising is forbidden". Stack Exchange explains what exactly is allowed and at what point participation turns into spam. Those rules are set out below close to the source.
The second thing to know in advance: everything you write you hand over under an open licence. The network's terms say that a contributor's materials are perpetually and irrevocably licensed to Stack Overflow under CC BY-SA 4.0, and that permission cannot be withdrawn.
Who's here
The network is not uniform. According to the platform's open programming interface on the date of our check, it holds 184 main sites and 181 accompanying "meta" sites; of the main ones 167 are in a normal state, 16 in open beta and one in closed beta. The largest is Stack Overflow: the same interface reports for it 31,416,903 registered users, 24,252,232 questions, 36,112,470 answers and 7,216,706 questions without an answer. These are the platform's own counters, and a "user" here means an account that has been created, not an active participant.
The spread between sites is enormous: the page listing the communities shows alongside Stack Overflow, for instance, Server Fault with 329 thousand questions and Web Applications with 35 thousand
The network is mostly English-language, but not only: the list of sites includes separate Stack Overflow sites in Russian, Spanish, Portuguese and Japanese. The platform does not publish a breakdown of its audience by country.
Getting started
An account is created on one of the network's sites and works across the whole network. The age threshold is written into the terms: no younger than 13, and in the European Union no younger than 16.
More important than registration is reputation: without it a company can do almost nothing on the platform. The order is this: 1 point — ask a question, answer, comment; 10 — removal of restrictions for newcomers and the right to post more links; 15 — vote and send flags; 125 — vote down; 2000 — edit other people's posts directly; 3000 — vote to close. It is earned through votes: +10 for an upvote on a question or answer, +15 for an accepted answer, +2 for an accepted edit, but no more than 200 points a day from votes and edits.
The practical conclusion: an employee who arrives to "support the product" cannot even comment on other people's answers for the first few weeks. That is not a glitch, it is how the platform is built.
What you can publish
The formats are simple: a question, an answer, a comment, an edit; the formatting is Markdown or HTML.
The prohibitions are collected in the acceptable use policy. The section on spam: you may not publish material for the sake of "affiliate marketing" — that is, promoting a product or service in a way that users have not asked for or that does not disclose your affiliation — and you may not obtain traffic or income by deception. The same place bans phishing, publishing personal data, and impersonating another person or organisation.
Two clauses matter for automation. The first: registering accounts in bulk, by hand or automatically, without the company's prior written permission is not allowed. The second: using spiders, bots, scrapers, unauthorised scripts and other means of automatic data collection is forbidden — beyond what a person needs for ordinary use of the site. A programming interface exists for machine access.
How to grow
The self-promotion rules: what exactly is written
The network's code of conduct says: «avoid blatant self-promotion. The community tends to vote down blatant self-promotion and flag it as spam. Post good, relevant answers, and if some (but not all) happen to be about your product or site, that's fine. However, if you mention your product, site and the like in a question or answer, you must disclose your affiliation in the post». And directly, in the same place: «if a large percentage of your posts include a mention of your product or site, you're probably here for the wrong reason».
A separate help page lists the behaviour that almost always ends in a "spam" flag: don't talk too much about your product, site, book or job; if you only answer questions where the answer could be the thing you sell, people will decide you came here to sell; don't tell — show; don't post links other than those that back up what you have written — a link is not a substitute for the content of an answer. The platform's conclusion: «if the only reason you are here is to sell something or to drive traffic to your own site, please refrain from posting answers».
One more rule that people forget: signatures, taglines, greetings and thanks are forbidden and removed as noise; each of your posts is already "signed" with a user card linking to your profile. The trick familiar from forums — a link to the company in a signature — simply does not work here technically.
The legitimate format for a company's presence
It exists and has a page of its own. The platform writes that Stack Overflow can work well for technical support and that such participation is welcome — "within certain limits". The recommended order: find the existing questions about your product and the tag, answer them or vote up the answers that are already good; help with other people's questions too; take part in the life of the site and earn the reputation needed for commenting and editing.
Then comes a limit put bluntly: Stack Overflow can help support a product but cannot be your only support; there are questions only you can resolve, and if you send users here with them, they will simply get angry. The same page offers a ready-made routing map: «how do I…» and «I got an error, why» — to Stack Overflow; «this is a bug», «I have an idea» — to your own site; «why did you…» and «when will you…» — to your own community.
Paid advertising
It is kept outside the content. The help section refers you to the company's own pages: details about advertising are at stackoverflow.co/advertising. The commercial page lists the formats: banner and native advertising, sponsorship of tags and sites, dedicated company pages, advertising in podcasts, newsletters and the blog. There is no rate card on the open pages. Both help pages repeat the same thing: «our advertising rates are quite reasonable, contact the ad sales department», and free community ads exist for open-source projects and non-profit organisations.
Path to monetization
Stack Exchange does not pay authors. On the pages we checked there is no share of advertising revenue, no donations and no paid subscription to an author. Reputation is not money: the platform calls it «a rough measure of how much the community trusts you», and it is spent only on rights inside the site.
The only built-in transfer of value between participants is the bounty: the author of a question gives part of their own reputation to the person answering. A bounty received is credited on top of the 200-point daily limit. Earnings here are indirect: reputation and visibility in search.
Tools and automation
The programming interface is open and documented. The current version is Stack Exchange API v2.3, with support for authentication and writing; an application is registered on the Stack Apps site to obtain a key or enable OAuth. Responses come in JSON, the maximum page size is 100 items, and for anonymous access without a token and key the maximum page number is 25. An application is registered through a form on Stack Apps and this requires signing in.
The rate limits are described openly: more than 30 requests a second from a single IP address and the requests are dropped for a period of "from 30 seconds to several minutes"; an application without a token shares a quota with other applications on the same IP, by default 10,000 requests a day; an application with a token gets a separate daily quota of the same size per "user + application" pair, and one user can have up to 5 such quotas. On top of that there is a dynamic brake: if a backoff field arrives in a response, the application must wait the stated number of seconds before its next call to the same method. And a request: responses are heavily cached, so requests that are equivalent in meaning made more often than once a minute are considered abuse.
The interface's terms of use add an obligation that gets forgotten when a dashboard is being built: every application must visually indicate that the source of the material is the Stack Exchange network, and applications that may be indexed by search engines must comply with all the attribution rules from the network's terms.
We found no third-party scheduling services for this platform — bulk posting here is forbidden by the rules, not by the technology.
Limits and rules
- Age. From 13, in the European Union from 16.
- Disclosing affiliation. If you mention your product, you must disclose your connection to it in the post itself.
- Signatures and taglines. Forbidden, removed as noise.
- Spam. Promotion that was not asked for and does not disclose affiliation, and obtaining traffic by deception, breach the acceptable use policy.
- Bulk registration and robots. Forbidden without the company's prior written permission.
- The licence on your text. CC BY-SA 4.0, perpetual and irrevocable.
- Sanctions. Access may be restricted or ended without warning and material deleted at the company's discretion.
- New communities. A topic site cannot simply be created: proposals go through an incubator site, where on the date of our check 171 projects were listed.
Who it's for
It suits companies with a technical product that have engineers ready to answer on the merits and under their own names. The affiliation-disclosure rule is not an obstacle here but a working mode: you say honestly that you represent the vendor and answer on equal terms with everyone else.
It suits you as a long-search channel: answers live for years and show up in results. The platform asks outright that you write for the ages — answering not only the person who asked, but those who find the question later.
It does not suit campaigns and launches: there is no feed here, no subscribing to a brand, nothing to announce. It does not suit agencies working "in the guise of an ordinary user" — that is named outright as a violation. It does not suit you if you have no people ready to earn a reputation before there is anything you need to say.
Verified data
The checked data this deep dive rests on.
About the platform
the platform describes itself like this: «We make Stack Overflow and 170+ other community-powered Q&A sites.»
Self-description: this is the platform's claim about itself, not an independent assessment
source, checked 2026-07-28
matches the database entry: «We make Stack Overflow and 170+ other community-powered Q&A sites.»
No discrepancies with the database were found; the actual number of main sites per the API is 184
source, checked 2026-07-28
Who's here
the network has 184 main sites and 181 accompanying "meta" sites; of the main ones 167 are in a normal state, 16 in open beta, 1 in closed beta
Data from the official API on the date of the check
source, checked 2026-07-28
Stack Overflow: 31,416,903 registered users, 24,252,232 questions, 36,112,470 answers, 12,396,082 accepted answers, 7,216,706 questions without an answer
The platform's counters; a "user" is an account, not an active participant
source, checked 2026-07-28
Account and access
privileges by reputation: 1 — questions, answers, comments; 10 — removal of the newcomer restrictions and more links; 15 — votes and flags; 125 — downvotes; 2000 — editing other people's posts; 3000 — voting to close
A company with no reputation cannot even comment on other people's answers
source, checked 2026-07-28
+10 for an upvote on a question or answer, +15 for an accepted answer, +2 for an accepted edit; no more than 200 points a day from votes and edits; bounties and bonuses do not fall under the daily limit
Reputation is a measure of the community's trust, not money
source, checked 2026-07-28
the minimum age is 13, and 16 for those in the European Union · the source is dated 2025-11-13
The network's terms, last updated 13 November 2025
source, checked 2026-07-28
Business terms
the official format for a company's presence: answer existing questions about the product, vote up good answers, help with other people's questions too, and build reputation; the platform warns outright that it cannot be a product's only support
A routing map is given: "how do I" and "an error" — to the site, "a bug" and "an idea" — to your own resource
source, checked 2026-07-28
a new topic site cannot be created directly: proposals go through the Area 51 incubator, where on the date of the check 171 projects were listed in the define, commit and public beta stages
The distribution: Technology 69, Culture 29, Science 23
source, checked 2026-07-28
Advertising
advertising formats: banner and native advertising, sponsorship of tags and sites, dedicated company pages, advertising in podcasts, newsletters and the blog
There is no rate card; you are invited to contact the sales department
source, checked 2026-07-28
the help section reports free community ads for open-source projects and non-profit organisations
At the time of the check the separate page with the selection criteria returned "Page not found"
source, checked 2026-07-28
Restrictions
the network's code of conduct: "avoid blatant self-promotion… if you mention your product, site and the like in a question or answer, you must disclose your affiliation in the post"; "if a large percentage of your posts include a mention of your product or site, you're probably here for the wrong reason"
KEY: disclosure of affiliation is mandatory, and the "large percentage" threshold is not set as a number
source, checked 2026-07-28
the help section lists the behaviour that leads to a "spam" flag: talking too much about your own product, answering only where the answer could be the thing you sell, asserting instead of demonstrating, and posting links that do not back up the text of the answer
The platform's conclusion: those who come only to sell are asked to refrain from answering
source, checked 2026-07-28
signatures, taglines, greetings and thanks in posts are forbidden and removed as noise; every post is already "signed" with a user card linking to the profile
The forum trick of "a link in the signature" is technically impossible
source, checked 2026-07-28
the acceptable use policy: you may not publish material for the sake of affiliate marketing — promoting a product or service in a way that was not asked for or that does not disclose the affiliation — or obtain traffic or income by deception
The same place bans phishing, doxing and impersonation
source, checked 2026-07-28
registering accounts in bulk, by hand or automatically, without the company's prior written permission is forbidden; spiders, bots, scrapers and unauthorised scripts for accessing the network's sites are forbidden
An official API is provided for machine access
source, checked 2026-07-28
Legal
a contributor's materials are perpetually and irrevocably licensed to Stack Overflow under CC BY-SA 4.0; the permission cannot be withdrawn
Content dumps are distributed under the same licence
source, checked 2026-07-28
API access
Stack Exchange API v2.3 with OAuth 2.0 authentication and support for writing; responses in JSON, a maximum page size of 100 items, and for anonymous access without a key and token a maximum page number of 25
The application is registered on Stack Apps
source, checked 2026-07-28
more than 30 requests a second from a single IP and the requests are dropped for from 30 seconds to several minutes; without a token, applications share an IP quota of 10,000 requests a day by default; with a token there is a separate daily quota of the same size per "user+application" pair, up to 5 quotas per user
A backoff field in the response requires waiting the stated number of seconds
source, checked 2026-07-28
the API terms require applications to indicate the Stack Exchange network visually as the source of the material; applications indexed by search engines must comply with all the attribution rules from the network's terms
A breach is grounds for immediate cut-off of access
source, checked 2026-07-28
the address https://api.stackexchange.com/ was found on the home page by the «api/dev» marker in the address; the page is served by a script and is empty without a browser, so whether this is documentation has not been verified
CORRECTED the previous version declared any address containing the word api or dev found on the home page to be a developer section. All 57 such records were checked by opening the address: 24 turned out to be documentation. See data/technical/dev-links-verified.tsv and docs/research/S195-догадка-по-адресу.md
source, checked 2026-07-28
Languages
the interface language of the home page: en
The language is taken from the markup attribute, the versions from hreflang
source, checked 2026-07-28
the network has separate Stack Overflow sites in Russian, Spanish, Portuguese and Japanese
The platform does not publish an audience breakdown by country
source, checked 2026-07-28
Catalogue section: all similar See also: catalogue index · region: USA and Canada · scheduler comparison · find by situation · platform restrictions