ScriptDrag — Third-party Script X-ray 作者: Vietcodex
See which third-party scripts drag down a page — their size, estimated main-thread cost, and what to defer or drop.
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ScriptDrag x-rays the third-party scripts dragging down any web page — and turns anonymous domains into a ranked, named to-do list. One click, no DevTools.
Third-party JavaScript — tag managers, analytics, chat widgets, ad networks — is where page weight quietly piles up. ScriptDrag reads the page's own performance timing and shows you exactly who is on your page, how heavy each one is, and what to cut first.
WHAT YOU GET
Free
• Who's actually on your page — every third-party script named (Google Tag Manager, Intercom, Doubleclick…) with its category, not anonymous domains.
• A kill-list ranked by impact — third parties sorted by estimated main-thread cost, so you fix the worst offenders from the top.
• Performance budget badge — see at a glance whether the page is lean, getting heavy, or over budget.
• 5 scans per day — no account, no setup.
Pro (one-time $89)
• The full kill-list — every third-party domain, not just the top offenders.
• Redundant-vendor detector — flags when you ship 3 analytics tools or 2 chat widgets, the bloat you can cut today.
• Duplicate-library detection — catches the same library loaded twice from different CDNs.
• CSV / JSON export — take the data into a spreadsheet or a ticket.
• Branded shareable report — one click turns a scan into a client-ready Markdown or printable report with your own name on it.
HONEST BY DESIGN
ScriptDrag reads the page's own Resource Timing — no profiling trace, no Lighthouse run, no setup. The main-thread cost is an estimate (~1 ms per KB of JavaScript) and is labeled as such. Scripts that hide their size (no Timing-Allow-Origin header) are shown as “size hidden”, never as 0. Vendor names come from the open third-party-web dataset, bundled locally.
PRIVATE BY DESIGN
Runs only when you click the icon. The page is analyzed locally on your device and never leaves your browser; nothing is sent to us.
HOW IT WORKS
1. Open the page you want to audit and let it load.
2. Click the ScriptDrag icon.
3. Work the kill-list top-down — defer, lazy-load, or drop the heaviest third parties.
PRICING
Free — 5 scans per day with named vendors, the kill-list, and the budget badge.
Pro — one-time $89, no subscription. Unlimited scans, the full kill-list, the redundant-vendor detector, CSV/JSON export, and the branded shareable report.
Built by Vietcodex.
Third-party JavaScript — tag managers, analytics, chat widgets, ad networks — is where page weight quietly piles up. ScriptDrag reads the page's own performance timing and shows you exactly who is on your page, how heavy each one is, and what to cut first.
WHAT YOU GET
Free
• Who's actually on your page — every third-party script named (Google Tag Manager, Intercom, Doubleclick…) with its category, not anonymous domains.
• A kill-list ranked by impact — third parties sorted by estimated main-thread cost, so you fix the worst offenders from the top.
• Performance budget badge — see at a glance whether the page is lean, getting heavy, or over budget.
• 5 scans per day — no account, no setup.
Pro (one-time $89)
• The full kill-list — every third-party domain, not just the top offenders.
• Redundant-vendor detector — flags when you ship 3 analytics tools or 2 chat widgets, the bloat you can cut today.
• Duplicate-library detection — catches the same library loaded twice from different CDNs.
• CSV / JSON export — take the data into a spreadsheet or a ticket.
• Branded shareable report — one click turns a scan into a client-ready Markdown or printable report with your own name on it.
HONEST BY DESIGN
ScriptDrag reads the page's own Resource Timing — no profiling trace, no Lighthouse run, no setup. The main-thread cost is an estimate (~1 ms per KB of JavaScript) and is labeled as such. Scripts that hide their size (no Timing-Allow-Origin header) are shown as “size hidden”, never as 0. Vendor names come from the open third-party-web dataset, bundled locally.
PRIVATE BY DESIGN
Runs only when you click the icon. The page is analyzed locally on your device and never leaves your browser; nothing is sent to us.
HOW IT WORKS
1. Open the page you want to audit and let it load.
2. Click the ScriptDrag icon.
3. Work the kill-list top-down — defer, lazy-load, or drop the heaviest third parties.
PRICING
Free — 5 scans per day with named vendors, the kill-list, and the budget badge.
Pro — one-time $89, no subscription. Unlimited scans, the full kill-list, the redundant-vendor detector, CSV/JSON export, and the branded shareable report.
Built by Vietcodex.
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