Overview
Capture local browser timing, request counts, transfer size, largest resources, and third-party domains for the current page.
Performance Snapshot gives developers, agencies, and site owners a fast local timing report for the active tab. Open the popup to capture Navigation Timing and Resource Timing from the current page. The report highlights DOM ready, load event, TTFB, known transfer size, requests by type, largest resources, and third-party domains. Copy a plain-text summary or export JSON/CSV for handoff notes. This extension does not replace Lighthouse, PageSpeed Insights, or lab/field Core Web Vitals tools. It reports local browser timing entries visible to Chrome at capture time. Some transfer size values may be hidden by cache state or cross-origin timing restrictions. Free features: - Current-page snapshot. - Copy summary. - Export JSON. - Export CSV. Supporter roadmap: - Saved local history. - Before and after comparison. - Branded client report. - Batch URL checklist later.
Details
- Version0.1.0
- UpdatedMay 26, 2026
- Offered bya1local
- Size30.5KiB
- LanguagesEnglish
- Developer
Email
extensions@a1local.com.au - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
Performance Snapshot has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Performance Snapshot handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
