Convert HTML Documents to PDF Using Ruby
Generate reliable PDFs from Ruby HTML with Grover, Wicked PDF, or PDFKit, including assets, print CSS, security, troubleshooting, and a hosted option.
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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.
MechanicalSoup: Is It a Good Choice for Web Scraping?
MechanicalSoup is excellent for stateful HTML scraping, but it cannot run JavaScript. Learn when to use it, how to submit forms, and when to choose a browser or API.
How to Scrape Instagram Profiles, Posts, Comments, and Photos
Learn what Instagram scraping allows, how to collect authorized data safely, process exports with Python, and avoid account, privacy, and copyright risks.
How to Fix Selenium’s Chromedriver Executable Path Error
Fix Selenium’s Chromedriver path error with Selenium Manager, PATH setup, explicit Service paths, compatibility checks, and CI troubleshooting.
How to Avoid Scraper Blocking When Capturing Images
Avoid image scraper blocks by checking permission, identifying your client, limiting requests, and stopping when a site denies access.
How to Convert a Webpage to PDF Using Print CSS
Create reliable webpage PDFs with print CSS, browser print, and Puppeteer. Fix margins, page breaks, fonts, assets, and pagination problems.
How to Extract Curl Requests from Chrome
Copy any Chrome network request as a reusable cURL command, understand its headers and tokens, and troubleshoot replay failures safely.
How to Scrape Hidden Web Data with Browser Automation
Learn how to find data loaded by JavaScript, inspect the request behind a page, and extract it responsibly with Playwright, Python, or Node.js.
How to Check File and Folder Sizes in Python
Learn how to measure one file, total folders, symlinks, sparse files, errors, and disk capacity with practical Python examples.
Convert HTML to JPEG with cURL
Convert supplied HTML and CSS to JPEG with cURL, or render a public webpage. Get runnable requests, output handling, options, and fixes for common errors.
Podman vs. Docker: Which One to Choose?
Compare Podman and Docker by architecture, rootless workflows, Compose support, desktop setup, and licensing to choose the right fit for your team.
How to Choose a Device Viewport for Website Screenshots
Choose screenshot viewports from real breakpoints, then control scale, page length, and device emulation for repeatable results.
How to Fail Browser Automation When There Is Nothing to Click
Learn when to wait, fix a locator, or fail a browser test when no clickable element exists, with Playwright and Selenium examples.
How to Create Traffic Time-Lapse Videos with Browser Automation
Capture repeatable traffic-map frames with Playwright, record browser video, assemble a time-lapse, and understand attribution, permissions, and failure modes.
cURL JavaScript Guide: Convert Commands to JavaScript
Convert a cURL request to JavaScript fetch, Node.js, or Axios. Learn the DevTools workflow, review generated code, and handle runtime differences safely.
How to Find Sibling HTML Nodes Using Cheerio and Node.js
Learn how to select adjacent, preceding, following, and bounded sibling elements with Cheerio in Node.js, with runnable examples and troubleshooting.
Secure Headers Test: Check HTTP Security Response Headers
Learn how to check HTTP security response headers with curl, Python, Node.js, browser tools, and a practical interpretation workflow.
DNS Migration Checklist for a Smooth Hosting Move
Move hosting or DNS without breaking your site or email. Use this staged checklist to prepare, cut over, monitor, and retire the old setup safely.