How LLMs Read and Interpret Images
Image-capable LLMs combine visual representations with text prompts. Learn how image processing works, why resolution matters, and how to improve results.
Guides
Step-by-step guides to capturing the web: screenshots, full pages, elements, devices and more.
What Is an Open Graph Image? A Developer’s Guide to og:image
Learn what og:image does, which dimensions to use, how to add it correctly, and how to fix wrong link-preview images.
Website Screenshot to WebP: API Guide
Learn how to request website screenshots as WebP, handle binary or URL responses, configure captures, troubleshoot failures, and automate conversion.
What Is Requests Used for in Python?
Learn what Python Requests does, how to send reliable HTTP calls, handle JSON, auth, timeouts and errors, and capture pages with ScreenshotNeo.
Do Web Scrapers Respect robots.txt?
Some crawlers follow robots.txt, but it is a voluntary protocol, not a security control. Learn what it can and cannot do, and how to protect private pages.
What Is a Request Payload? A Practical HTTP Guide
A request payload is the data sent in an HTTP request body. Learn how it differs from headers and form data, how to send JSON and other body types, and how to debug common mistakes.
Web Scraping with Parsel in Python: A Practical Guide
Learn to fetch HTML and extract clean, structured data with Parsel using CSS, XPath, and JMESPath, with runnable examples and fixes for common pitfalls.
What OAuth Scopes Can You Request?
OAuth scopes are defined by each authorization server, so there is no universal list. Learn how to find the right scopes, check what was granted, and handle provider-specific behavior.
Selenium Page Object Model: POM and How to Use It
Learn Selenium’s Page Object Model with maintainable Java examples, stable locators, explicit waits, components, troubleshooting, and CI practices.
How to Measure Social Media Post Performance
A practical framework for measuring social posts: choose the right goal, formulas, platform analytics, attribution, comparisons, and reporting.
Headless Chrome Node API and Puppeteer Installation
Install Puppeteer with a compatible Chrome, fix common launch errors, and deploy headless automation in Linux and containers.
What Is the Maximum Screenshot Size? Pixel, File-Size, and Upload Limits Explained
There is no universal screenshot maximum. Learn how pixel dimensions, file size, device class, and upload rules determine the limit.
License Verification: How to Check a Professional License
Learn how to verify a professional license using official state databases, Nursys, or NIPR—and how to document results correctly.
Is Web Scraping Worth Learning? A Practical Developer’s Guide
Web scraping is worth learning when it supports a real, permitted project. Learn the skills, tools, limits and a practical path from one page to reliable crawls.
Best Programming Language for Web Scraping
There is no universal best language for web scraping. Choose based on how pages render, your workload, your team’s tools, and the cost of operating a browser.
What Is JSON? A Practical Guide to Syntax, Data Types, Parsing, and Safe APIs
JSON is a text format for exchanging structured data. Learn its six value types, syntax rules, JavaScript differences, parsing, validation, and safe API use.
How Bet365 Detects Selenium ChromeDriver and How to Test Responsibly
Public sources show Bet365 restricts certain automated access and report one historical Selenium detection, but do not reveal how its current checks work.
Local LLM Guide 2026: Running Ollama on Your Hardware
Learn how to run Ollama locally, choose hardware and context sizes, verify GPU use, fix common errors, and connect local models to your tools.