DNSSEC Test: Check DNS Security Extensions for a Domain
Learn how to test a domain’s DNSSEC chain, verify resolver validation, interpret SERVFAIL and NOERROR, and fix common diagnostic findings.
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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.
Best Software Development Tools for Browser Automation and Website Screenshots in 2026
Compare Playwright, Puppeteer, Selenium, Percy, and ScreenshotNeo for browser automation, full-page screenshots, and visual testing.
How to Build a Custom GPT with a Knowledge Base
Build a custom GPT with uploaded reference files, clear instructions, and a practical testing workflow. Check current access rules, file limits, and troubleshooting tips.
How to Check for Broken Links on Any Website
Find broken internal and external links with crawlers, Search Console, command-line checks, and a repeatable fix-and-verify workflow.
Web Scraping vs API: What’s the Difference?
APIs return data through provider-defined interfaces; scraping extracts it from web pages. Compare coverage, access, structure, limits, and maintenance to choose.
Using GPT Vision to Analyze Website Screenshots
Learn how to send website screenshots to GPT Vision, improve text accuracy, automate analysis, troubleshoot failures, and control API costs.
What Is Browser Fingerprinting? How Sites Track You Without Cookies
Browser fingerprinting combines browser and device signals to recognize visitors without relying on cookies. Learn what it reveals and how to reduce exposure.
E-Commerce Scraping Automation: Build a Reliable Product Data Pipeline
Build an e-commerce data workflow that collects authorized product data, validates it, stores dated results, and recovers cleanly when pages change.
How to Check Cross-Domain Policy Headers
Learn how to diagnose CORS, CORP, COEP and COOP with DevTools, curl and reproducible preflight checks.
How to Organize Browser Automation Contexts
Learn when to create a browser context, when to open another page, and how to isolate users, tests, authentication, and persistent profiles.
CSP Test: Check the Content Security Policy Header
Learn how to inspect a live CSP header, evaluate its policy, and test changes in report-only mode before enforcing them.
How to Customize a Local Browser with Cookies, Viewport, and More
Configure a repeatable Playwright browser session with cookies, viewport, locale, timezone, device emulation, and reliable troubleshooting.
Local Business Scraper: Legal Data Collection and API Guide
Learn how to source local business data responsibly, compare the Places API with scraping, and build a compliant lead workflow.
Auto-Generate YouTube Thumbnails From Templates
Create repeatable YouTube thumbnails from Canva or Adobe Express templates, meet YouTube’s current size rules, and automate source captures.
How to Build a Web Scraper with Codex and Web MCP
Build a focused web scraper as an MCP server Codex can call. Learn the architecture, setup, validation, local testing, deployment, and screenshot alternative.
How to Scrape Web Forms with Browser Automation
Learn a reliable Playwright workflow for finding, filling, submitting, and extracting web forms across frames and dynamic pages.
How to Automate E-Commerce Marketing Images
Build a reliable image pipeline for Shopify, Amazon, and ads: capture a source photo, generate controlled variants, validate every file, and publish safely.
Convert Any Website to Markdown with an API
Compare URL-to-Markdown APIs, get runnable cURL, Python, and Node.js examples, and learn how rendering, selectors, crawling, and retries affect results.