10 Link Shortening Mistakes That Kill Your Click-Through Rate
Most people treat URL shortening as an afterthought. These ten mistakes are quietly costing you clicks, trust, and data.
URL shortening sounds simple — paste a long link, get a short one, share it. But the difference between a high-performing short link and one that people scroll past is usually a handful of avoidable mistakes. Here are ten that show up constantly, and how to fix each one.
1. Using Random Slugs Instead of Descriptive Ones
The auto-generated slug you get from most shorteners looks like bah.is/x7k2m. That tells your audience exactly nothing. A descriptive slug like bah.is/spring-sale or bah.is/podcast-ep42 does something a random string never can: it signals what the destination is before the click.
When people hover over a link and see a recognizable slug in the status bar, they’re more likely to click. Random slugs look like phishing bait to trained eyes. Spend five seconds giving your slug a name. Branded short links take this even further by putting your domain on every link.
The Fix
Use a link shortener that makes it easy to customize slugs. Every link shared publicly deserves a human-readable slug.
2. Not Tracking Link Clicks
If you’re not tracking who clicked, when, from where, and on what device, you’re operating blind. Link analytics tell you which campaigns are landing, which channels drive the most traffic, and where engagement drops off.
The Fix
Use a link shortener that includes built-in analytics. Don’t opt for a service that makes you upgrade just to see basic click data — that data should come standard.
3. Using Unreliable Free URL Shorteners
Free shorteners built on ad revenue or thin margins have a nasty habit of disappearing. When they go down, every link you ever shared through them breaks — across every email, every social post, every printed piece of collateral. We break down the full scope of this problem in the hidden costs of free shorteners.
The Fix
The value of a short link lives as long as the service does. Choose a provider with a credible infrastructure, transparent pricing, and a track record. Your links are an investment.
4. Ignoring Mobile Link Experience
Over 60% of link clicks happen on mobile devices, according to Statista’s mobile internet statistics. If your destination page isn’t mobile-optimized, your short link is sending people to a broken experience. A great short link can’t save a pinch-to-zoom landing page.
The Fix
Before you share any link, open it on your phone. Check load time, layout, and that any forms or buttons actually work at thumb-width. Your click-through rate ends at the click — your conversion rate starts there.
5. Not Using UTM Parameters
A short link with UTM parameters attached to the destination URL is dramatically more useful than one without. Without UTMs, you can count clicks. With them, you can attribute revenue. Read our complete UTM parameters guide for the full setup.
The Fix
bah.is/spring-sale pointing to yoursite.com/sale?utm_source=twitter&utm_medium=social&utm_campaign=spring26 gives you click data from bah.is and full campaign attribution in your analytics platform. These are not mutually exclusive — they stack.
6. Not Testing Links Before Sharing
Typos in destination URLs are embarrassingly common and completely invisible until after you’ve sent the email to 40,000 subscribers.
The Fix
Always click your short link yourself before sharing it. Check that the destination loads correctly, the UTMs are intact, and any discount codes or query parameters survived the redirect. This takes fifteen seconds and saves you from having to send a “we apologize for the broken link” follow-up.
7. Using Slugs That Are Too Long
The whole point of a short link is brevity. A slug like bah.is/our-amazing-spring-2026-sale-on-all-products defeats the purpose.
The Fix
Aim for slugs that are descriptive but concise — two to four words, hyphenated. bah.is/spring-sale is almost always better than bah.is/spring-sale-2026-allproducts. If you need to differentiate multiple similar links, use UTM parameters on the destination URL rather than making the slug longer.
8. Forgetting QR Codes for Print Links
Every short link is also a QR code waiting to be generated. If your link is going anywhere physical — a product package, a conference booth, a printed flyer, a business card — a QR code makes it scannable. Our QR code marketing guide covers this in detail.
The Fix
Most decent link shorteners generate QR codes automatically for every link you create. The missed opportunity here is real — short links that appear in print without an accompanying QR code lose a significant share of their potential traffic.
9. Not Updating Broken Destinations
Campaigns end. Product pages get moved. Landing pages get retired. But the short links you created for them keep circulating — in old emails, saved bookmarks, and shared posts you no longer control.
The Fix
When a destination goes 404, every future click is a dead end and a piece of lost trust. Audit your active links periodically, and use a service that lets you update the destination URL without changing the short link itself. Redirect management is a core feature, not a luxury.
10. Sharing HTTP Instead of HTTPS Links
In 2026, sharing an HTTP link is a red flag. Browsers mark HTTP destinations as “not secure.” Some email clients will flag them. And your audience will notice. According to Google’s HTTPS transparency report, over 95% of web traffic now uses HTTPS.
The Fix
Always make sure your destination URL uses HTTPS. And make sure your short link itself resolves over HTTPS. Any link shortener still serving plain HTTP redirects is a liability.
These mistakes are individually small and collectively costly. A link that loses trust before the click, breaks at the destination, or provides no data afterward is a wasted opportunity at every stage.
Short links should do three things: inspire confidence, deliver cleanly, and tell you what happened. Getting all three right is what separates link management from link chaos.