How to Check Whether a Website Is Down
Learn how to tell whether a website outage is global or limited to your browser, network, DNS, or URL with practical checks and code.
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Guides for capturing the web
How to take clean screenshots, turn HTML into images and PDFs, run headless browsers, and give AI agents eyes. Written by the team that builds ScreenshotNeo.
DNS Record Lookup: Check Domain DNS Records
Learn how to check A, AAAA, MX, TXT, CNAME, NS and other DNS records with browser tools, dig, Python and Node.js.
The Best TikTok Scrapers: Tools to Collect Public Data
Compare TikTok’s official Research Tools with third-party collection approaches. Learn how to choose a method, assess coverage, and avoid misleading conclusions.
Scrapy Splash Guide: Setup, Lua, and Compatibility
Install Scrapy Splash, run it with Docker, write Lua renderers, troubleshoot WebKit limits, and choose a modern screenshot alternative.
How to Check Whether an Element Exists in Playwright
Learn when to use toBeAttached, toBeVisible, and toHaveCount in Playwright, with reliable locators, timing fixes, code, and troubleshooting.
Hreflang Checker: Check Tags for International SEO
Learn how to check hreflang tags, return links, language codes, and localized URLs—and understand what a checker can and cannot tell you.
Detecting Fonts in Design Tools Automatically
Learn how Illustrator and Photoshop suggest fonts from images, what Figma’s font tools actually do, and how to improve your chances of finding a close match.
How to Use Rotating Proxies: Per-Request vs. Sticky Sessions in Code
Learn when to rotate proxies per request and when to keep a sticky IP. Includes runnable Python, cURL, and Node.js patterns, session handling, and troubleshooting.
Improving Website Features with Automated Screenshots
Use automated screenshots to catch visual regressions, review feature states, and decide when Playwright or Percy fits your workflow.
Make Concurrent Requests in PHP: Symfony HttpClient, Guzzle, and Safe Concurrency
Learn how to run independent HTTP requests concurrently in PHP with Symfony HttpClient and Guzzle, including limits, failures, retries, and production patterns.
CSS Paged Media: The Complete Guide to Print and PDF Styling
Learn how @media print, @page, page breaks, browser engines and Paged.js work together to create reliable printed pages and PDFs.
How to Check Established Network Connections in a Docker Container
Inspect live established TCP sockets in a running Docker container with ss, Docker Compose, or a Linux host namespace. Learn what each view shows and how to fix common errors.
How to Automate Website Monitoring with Screenshots
Automate website monitoring with Playwright screenshots, visual baselines, CI schedules, diff triage, and ScreenshotNeo hosted captures.
How to Integrate MCP with ChatGPT
Connect a remote MCP server to ChatGPT Developer Mode, choose the right SDK route, secure OAuth, test tools, and publish safely.
Python Syntax Errors: Common Mistakes and How to Fix Them in Scraping Code
Fix Python syntax, indentation, and parser errors in scraping scripts with runnable examples, debugging steps, and Beautiful Soup troubleshooting.
How to Render Screenshots and HTML with ChatGPT
Learn how to upload screenshots, preview HTML, iterate on code, and create final images in ChatGPT, with a reliable API workflow when you need automation.
Ultimate XPath Cheatsheet for HTML Parsing in Web Scraping
A practical XPath reference for Scrapy and lxml: extract text, attributes, lists and structured data while avoiding scope, position and namespace bugs.
Web Scraping With Scrapy: A Complete Guide in 2026
Build a Scrapy spider, extract and export structured data, follow links, and troubleshoot dynamic pages with this practical guide to Scrapy 2.19.