Google Analytics Tracking Miscount - Originating Around 5/24

[zDucketz]

Is anyone else experiencing an issue where it seems GA failed to track many of their visitors?

This is why I think it's something on GA's end and not mine (and not natural):

1. No changes were made, site wasn't down, tracking code is correct and is "receiving data"

2. Referral, Direct and Organic traffic all dropped at about the same decline over the same period

*3. Pinterest Analytics shows me being sent over 10 times more traffic every day than GA shows me actually receiving. In the screenshot, Pinterest shows 584 uniques while GA shows 43 for Sunday.

I figure if something was broken, I wouldn't be showing ANY traffic and if it was natural, it wouldn't have happened on the same decline across all traffic mediums and Pinterest Analytics wouldn't be so far off.

I saw a few people mentioning similar things on Google's forums and wanted to ask you guys if anyone noticed any issues?

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[DougRoberts]

Some things to check:

Was your site available during this time? If visitors couldn't access your site then you wouldn't see the referrals. Had a similar problem a while back with intermittent downtime on one of my sites. This would affect all traffic regardless of the source.

Can you check your server log-files. This will show you what pages were being served regardless of any GA tracking issues.

[zDucketz]

Doug,

I appreciate the response and yes I've checked into the up-time, server logs, etc. I can't see any irregularities with the pages being served and we had 98.6% up-time over the past 7 days. Plus we're a start-up company with our faces in here every day and the moment anything on the site doesn't work, one of the team members invariably spots it. I wish that were the answer, as I'd have something concrete to go off of.

[zDucketz]

Google is now involved via their forum. Here's the thread and other complaints, should anyone care to add anything or follow the issue.

https://productforums.google.com/forum/?hl=en-US#!msg/analytics/MuuHK4z-MDQ/fRLErjRCvKAJ