You should stop using random short links and switch to a branded URL shortener with built-in click analytics. Most "free" shorteners only give you a redirect — they don't tell you who clicked, from where, or on what device.
The fix is using a tool that combines branding with tracking in one step. Recognizable, branded short links can drive about 34% more clicks than generic ones, and pairing that with click analytics (device, geography, referrer) means you're not just shortening a link, you're collecting data every time someone clicks it. 301 permanent redirects also pass full SEO link equity to your destination page, so there's no tradeoff with search rankings either. shorturl
I wrote a full breakdown of branded link tracking here, including how UTM tagging fits into the workflow: shorturl.bar/en