feat(attributes): Add remaining TTFB, FCP and FP web vital attributes#235
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feat(attributes): Add remaining TTFB, FCP and FP web vital attributes#235
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Lms24
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Semver Impact of This PR🟡 Minor (new features) 📋 Changelog PreviewThis is how your changes will appear in the changelog. New Features ✨Attributes
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Lms24
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cleptric
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Jan 23, 2026
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Adds browser.web_vital.ttfb.value, browser.web_vital.ttfb.request_time, browser.web_vital.fcp.value and browser.web_vital.fp.value as new canonical attributes, and marks the legacy ttfb, ttfb.requestTime, fcp and fp attributes as deprecated with backfill status. Made-with: Cursor
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This PR adds attributes for the remaining web vitals the JS SDK collects on the pageload span:
browser.web_vital.ttfb.value(replaces now also added and deprecatedttfbattribute)browser.web_vital.ttfb.request_time(replaces added and deprecatedttfb.requestTimeattribute)browser.web_vital.fcp.value(replaces added and deprecatedfcpattribute)browser.web_vital.fp.value(replaces added and deprecatedfpattribute)