TWebCopy: A Complete Guide to Downloading Websites for Offline Use

Optimize TWebCopy Settings for Faster, Accurate Site Copies

1. Choose the right download mode

  • Full site — best for complete offline browsing; slower and larger.
  • Mirror (structured) — preserves site structure; balanced speed and accuracy.
  • Single page / partial — fastest; use when you only need specific sections.

2. Set URL filters

  • Include: add only necessary paths (e.g., /blog/, /docs/) to reduce size.
  • Exclude: block large media folders, tracking scripts, CDN paths, or query-heavy URLs (e.g., ?session=).
  • Use wildcard patterns (e.g., /images/) to efficiently trim content.

3. Limit depth and bandwidth

  • Maximum link depth: 2–4 for most sites; higher depths increase time and size.
  • Max file size: skip very large files (e.g., >5–10 MB) to speed up.
  • Download threads/concurrency: increase for faster downloads but monitor CPU/network; start with 4–8 threads.

4. Adjust request behavior

  • Respect robots.txt: enable if you want to follow site rules; disable only if you have permission.
  • Delay between requests: 200–800 ms to avoid server throttling; reduce for trusted/local sites.
  • User-Agent: set a common browser UA to retrieve correct content; avoid impersonation of crawlers.

5. Handle JavaScript-heavy sites

  • TWebCopy is not a full browser — for JS-rendered content, prefetch static API endpoints or use tools that support headless browsers (e.g., HTTrack + browser emulation).
  • If pages include JSON endpoints, add those URLs to include list.

6. File types and MIME handling

  • Include needed extensions (.html, .css, .js, .png, .jpg, .svg, .json).
  • Exclude unnecessary formats like .mp4/.zip if not required.

7. Rewrite and link handling

  • Enable link rewriting to make local links functional.
  • Use absolute-to-relative conversion for portability.

8. Logging and retries

  • Enable detailed logs to catch missed resources.
  • Set retry count to 2–3 for transient errors; backoff between retries.

9. Post-download cleanup

  • Remove orphaned files and empty folders.
  • Run a quick local link-check to find broken links and re-download missing assets.

10. Test and iterate

  • Start with a small section using conservative settings, verify results, then expand.
  • Keep a checklist: page rendering, images, styles, scripts, forms, and downloads.

If you want, I can produce a ready-to-use TWebCopy settings profile (threads, depth, filters, file-size limits) for a blog, documentation site, or e-commerce site—tell me which.

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