Tooling
Web scraping
Also known as: scraping, data scraping
Web scraping is the automated extraction of data from web pages, usually by fetching the HTML and parsing out specific elements into a structured format. It is used to gather information at a scale that manual collection cannot reach, such as prices, listings, reviews or search results. Legality and acceptable use depend on the site's terms, the data involved and local law.
What it is
A scraper requests pages like a browser would, then reads the returned markup to pull out named fields and write them to a spreadsheet, database or API response. Simple scrapers parse static HTML, while others render JavaScript with a headless browser because the content only appears after scripts run. Output is typically CSV or JSON so the data can be joined with other sources.
Why it matters
Search and growth teams depend on data that no single platform exports cleanly: competitor pricing, SERP layouts, catalogue coverage, review sentiment or the contents of AI answers. Scraping turns that scattered public information into something you can trend and act on. It also underpins much of the SEO tool market, so understanding it helps you judge where your vendors' data comes from and how reliable it is.
How it works
Practitioners either build scrapers with libraries and headless browsers, or buy a managed API that handles proxies, rendering and blocking for them. Responsible practice means respecting robots directives and site terms, rate limiting requests, identifying your agent, and caching so you do not re-fetch unchanged pages. Where an official API or data export exists, it is normally the better option because it is stable and sanctioned.
When it applies
Scraping applies when data you need is visible on public pages but not available through a feed, export or API, and the volume makes manual collection impractical. Check terms of service, data protection obligations and whether personal data is involved before you start.
Examples
- A retailer scrapes competitor product pages nightly to monitor price and stock changes on 500 matched SKUs.
- An SEO team crawls its own site and extracts schema markup from every template to find pages missing product data.
- A research team collects the cited sources shown in AI answers for a set of queries to see which publishers are quoted most often.
How it is measured
- Successful request rate versus blocked, throttled or failed requests
- Field-level completeness and accuracy in the extracted records
- Data freshness, measured as time since last successful fetch per page
- Cost per thousand pages fetched, including proxy and rendering overhead
Related terms in Tooling
- Ahrefs Brand RadarAhrefs' AI-visibility module tracking brand mentions and impressions inside AI answers. Surfaces shifts in how brands appear across ChatGPT, Gemini, and other LLM surfaces.
- AI content detectionAI content detection is the use of software to estimate whether a piece of text, image, audio or video was generated by an AI model. Detectors return a probability or classification rather than proof, and accuracy varies with length, language, editing and model used. Because of that uncertainty, results are treated as a signal for review, not a verdict.
- AI watermarkingAI watermarking is the practice of embedding a signal into AI generated text, images, audio or video so the output can later be identified as machine produced. The signal is usually designed to be imperceptible to people but detectable by software that holds the matching key or detector. It is one of several provenance approaches used alongside metadata standards and content credentials.
- Bot detectionBot detection is the practice of identifying automated traffic to a website or API and separating it from human visitors. It distinguishes wanted automation, such as search engine and AI crawlers, from unwanted activity like scraping, credential stuffing and click fraud. Detection results feed decisions about what to allow, challenge, rate limit or block.
- Brave BrowserBrave is a Chromium based web browser from Brave Software that blocks third party trackers and most ads by default. It bundles privacy controls, Brave Search as the default engine, and an AI assistant called Leo. Because it strips tracking scripts, visits from Brave users are often harder to attribute in analytics.
- Brave SearchBrave Search is a search engine from Brave Software that serves results from its own web index rather than reselling another engine's results. It is the default engine in the Brave browser, offers AI generated answer summaries, and is sold to developers as the Brave Search API. That API makes it a grounding source for other search and AI products.
Primary research · August 2026
How ChatGPT Shortlists Software Brands
An audit across 10 categories and 60 buying questions. I recorded what ChatGPT reads, throws away and links to when a buyer asks it which software to buy, and what that decides.
- 60
- Questions asked
- 10
- Software markets
- 2,680
- Results read
- 367
- Links shown
Free download
Get the full report
35 pages · PDF · 536 KB. Enter your details and it downloads straight away.