The Web Data &amp; Intelligence Wiki

Brotli Compression

Advanced network compression for faster, smaller data extraction....

Performance Optimization

Browser Fingerprinting

The technique websites use to identify unique devices based on hardware and software signatures....

C Terms starting with C

Canvas API Detection

How websites use invisible graphics rendering to identify automated browsers....

Crawl Frontier

The intelligent queue system that manages which URLs to visit next during web scraping operations....

Crawling Architecture

D Terms starting with D

Data Imputation

Mathematically filling in missing or incomplete fields in scraped datasets....

Data Engineering

Data Observability

Monitoring the health and reliability of web scraping pipelines....

Operations

Data Sanitization

The process of stripping sensitive PII and noise from raw scraped data....

Data Engineering

DOM Mutation Observer

Tracking live changes on web pages without full page reloads....

Scraping Architecture

Dynamic Rendering

Handling content that only appears after JavaScript execution....

Scraping Challenges

H Terms starting with H

Honeypot (Bot Trap)

Hidden links and fields designed to catch and ban automated scrapers....

R Terms starting with R

Reverse ETL

Moving extracted data back into CRM and marketing tools for business activation....

Data Engineering

S Terms starting with S

Schema Evolution

Adapting scrapers when website structure changes....

Scraping Operations

Session Persistence

Managing cookies and authentication across millions of scraping requests....

Scraping Architecture

Stealth Plugins

Advanced browser automation tools that hide headless browser signatures....

Anti-Bot Evasion

U Terms starting with U

User Behavior Analytics

How websites track mouse movements and interactions to identify automated browsers....

C Terms starting with C

CAPTCHA

CAPTCHAs are the gatekeepers of the web. From reCAPTCHA to hCaptcha, learn how these challenges work and how to solve them at scale....

CSS Selector

CSS selectors are the clean, elegant way to target HTML elements. Simple, readable, and perfect for 90% of scraping tasks....

CSV

CSV is the humble hero of data formats. Simple, universal, and opens in every spreadsheet application on Earth....

Data Format

D Terms starting with D

Data Normalization

Data normalization transforms messy scraped data into clean, consistent formats. Garbage in, quality out — unless you normalize....

Data Processing

Deduplication

Deduplication removes duplicate records from your dataset. Because counting the same product 50 times isn't useful data....

Data Processing

DOM

The Document Object Model is the browser's internal representation of HTML. Master it, and you can extract data from any webpage....

DPDP Act 2023

India's Digital Personal Data Protection Act 2023. What web scrapers need to know about India's new data privacy law....

Legal

E Terms starting with E

ETL

ETL (Extract, Transform, Load) is the heartbeat of data pipelines. Raw data becomes insights through this three-step dance....

Data Processing

H Terms starting with H

Headless Browser

A headless browser is a web browser without a GUI. It's the stealth weapon for scraping JavaScript-heavy sites and automating complex workflows....

I Terms starting with I

IP Rotation

IP rotation is the art of distributing requests across multiple IP addresses. Keep your scraping invisible and your target oblivious....

J Terms starting with J

JSON

JSON is the universal language of data exchange. Lightweight, human-readable, and loved by developers worldwide....

Data Format

N Terms starting with N

NER (Named Entity Recognition)

NER extracts named entities (people, places, organizations) from unstructured text. Turning words into knowable facts....

Data Intelligence

R Terms starting with R

Rate Limiting

Rate limiting controls how fast requests can be made. Respect it, or get blocked. Simple as that....

Residential Proxy

Residential proxies route your traffic through real ISP-assigned IP addresses. The ultimate disguise for high-value data operations....

S Terms starting with S

Sentiment Analysis

Sentiment analysis extracts emotional tone from text. Know what people really feel about products, brands, and services....

Data Intelligence

Shadow DOM

Shadow DOM encapsulates HTML components, hiding them from your selectors. The tricky beast that breaks naive scrapers....

T Terms starting with T

TLS Fingerprinting

TLS fingerprinting identifies your scraper by how it performs the SSL/TLS handshake. Even your encryption has a signature....

U Terms starting with U

User-Agent

The User-Agent string is your browser's ID card. Master it to avoid detection and access restricted content....

W Terms starting with W

Webhooks

Webhooks are your system's antenna for real-time data. No more polling — let the data come to you....

Integration

X Terms starting with X

XPath

XPath is the GPS for HTML. No cap, without it, you're lost in the DOM jungle....