A bot, short for robot, is a software program that performs tasks automatically, usually repetitive ones, much faster than a person could. Bots answer customer questions, search the web, place trades, post on social media and much more. Some are simple rule-followers; others use artificial intelligence.
What a bot is
A bot is not a physical robot. It is code running on a computer or server that carries out instructions on its own once started. Bots can work around the clock, handle thousands of tasks at once and respond in milliseconds. That makes them useful for jobs that are high-volume, repetitive or time-sensitive.
Types of bots
Chatbots hold conversations with people, for example on a bank's website or a shopping app. Older chatbots follow scripted rules; newer ones use AI language models to understand and respond in natural language. Web crawlers visit websites automatically to index pages for search engines and, increasingly, for AI systems. Trading bots place buy and sell orders automatically according to set rules, a practice called algorithmic trading. Automation bots handle routine office tasks such as copying data between systems, often called robotic process automation. Social media bots post or interact automatically; some are helpful, others spread spam or misinformation.
How bots work
A simple bot follows fixed rules: "if a customer types 'balance', show the account balance." An AI-powered bot uses a model trained on large amounts of data to interpret requests it was never explicitly programmed for. Many modern bots combine both: rules for safety and reliability, AI for understanding language.
Everyday examples
You meet bots when a website's chat window answers your question, when a delivery app sends automatic updates, when search engines find your website, and when your bank flags a suspicious transaction. In markets, a large share of trading activity on major exchanges is generated by algorithms.
Bots in investing
In India, algorithmic trading is regulated by SEBI, and rules for retail investors using algorithms through brokers have been tightened to improve safety and accountability. Investors should be very cautious of anyone selling "guaranteed profit" trading bots: SEBI has acted against misleading claims about algorithmic returns, and many such offers are scams.
Good bots and bad bots
Helpful bots save time and improve services. Harmful bots can scrape websites without permission, attempt to break into accounts, generate fake reviews, inflate traffic or spread false information. Websites use tools such as CAPTCHAs and traffic monitoring to tell humans and bots apart and to block abusive ones.
Why it matters
Bots are now part of everyday digital life and a growing part of business operations. Understanding them helps you use them well, recognise their limits, and spot misuse, from scam trading bots to fake social media accounts.
Bots and the future of the web
A growing share of internet traffic comes from bots rather than people, including crawlers that collect information for AI assistants. Website owners now decide which bots to allow, often through a file called robots.txt, balancing the benefits of being found by search engines and AI tools against the costs of heavy or unwanted crawling.
Common misconceptions
"All bots are AI." Many are simple rule-based programs.
"Bots are always harmful." Most are useful, from search engines to customer service.
"A trading bot guarantees profits." No tool can guarantee market returns.
Frequently asked questions
Is a chatbot the same as AI?
Not always; some chatbots use AI, others follow scripts.
Are trading bots legal in India?
Algorithmic trading is permitted under SEBI's rules, through registered brokers.
What is a web crawler?
A bot that visits websites to collect and index information.
How can I tell if I'm talking to a bot?
Many services label automated assistants; very fast, scripted replies are also a clue.
How PositoAI fits in
PositoAI welcomes legitimate search and AI crawlers so that its free research pages can be found, and uses AI to write short company summaries. Learn more in our guide to AI and on our FAQ.
Summary
A bot is software that performs tasks automatically. Types include chatbots, web crawlers, trading bots, automation bots and social media bots. Some follow rules; others use AI. Bots save time and power many services, but they can also be misused, and no trading bot can guarantee profits.