Comments (6)
I'm going to close this as I suspect the issue is with this specific property's implementation and not an issue with the web-vitals library or its usage instructions related to GA. Please reply here if you discover otherwise.
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Hmmm, I'm not sure why that would be. What is the hostname for the pageviews in that session?
In my experience bots and spammers send data containing URLs with an incorrect hostname, and so setting a filter on your view to only accepts hits with a hostname that matches your domain has generally worked for me to avoid all spam.
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Hi Philip !
thanks for your hint.
I've added the hostname as secondary dimension for all not set landings, but it seems that all the traffic is coming from the correct website hostname, so I cannot filter it out.
It's really weird because (not set) landing were registered only when we had the web vitals tag active, and stopped just after we stopped the tag.
Thanks,
Daniela
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Did you see a drop in pageviews too? Looks like pageviews may not be firing which would explain the not set landing page and the low number of sessions.
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this happens when event is the first interaction on a page, we fixed it by making sure that web vital events always fire after the first page view.
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The reason for this is because CLS can send multiple times per pageload and LCP will send when the tab unloads. If sending these values to GA as a non-interactive hit (which you should) then these hits will not extend the GA session. And if no subsequent pageview fires, then these hits will cause Landing Page = (not set).
So basically this will happen whenever:
- the user has the page open longer than the GA session timeout (30 min by default) w/o triggering other tracked events
- the user opens the page shortly before midnight based on the timezone you have set the GA view settings
I just submitted a new request which may help address this.
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Related Issues (20)
- iOS Chrome Support HOT 1
- _/release
- differences in TTFB in safari vs chromium based browsers HOT 1
- Status of Python versions
- Link
- LCP value setting to 0 intermittently HOT 7
- Add INP breakdown entries to the attribution build HOT 3
- User consent policy HOT 1
- Firefox LCP tests failing
- Bug: LCP attribution can include `resourceLoadDelay` attribution timings far greater than the LCP value in cases where `onTTFB` discards the navigation data HOT 1
- FCP and TTFB are triggered multiple times HOT 7
- contributing LoAF basesd code that idenifies LoAF, INF and JS long tasks data HOT 1
- Capturing metadata with events HOT 2
- Allow to reset the INP calculation HOT 2
- v4 giving undefined TypeError HOT 1
- INP: Probably a bad measurement metric for web vitals - even with simple HTML structure pages with no CSS will cause bad value. HOT 1
- Expose INP target element as first class citizen in attribution HOT 2
- Expose ability to reset internal state of metrics (specifically INP) HOT 2
- v4 INP attribution ending processingEnd time in the wrong animation frame HOT 8
- CDN JS - Web server is returning an unknown error HOT 4
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