The Most Common Website Launch Mistakes (And How to Catch Them)
The failures that show up again and again across first-time launches, grouped by root cause.
We don't have a large enough public dataset yet to publish “X% of sites fail this check” style statistics — and we won't invent numbers to sound more authoritative than we are. What we can share honestly is which mistakes recur across the categories the LaunchGraded Standard checks, and why each one tends to happen even to careful teams. Grouped by root cause, not severity:
Left over from staging
A noindex tag that was correct while the site was unfinished and never got removed. A “Coming soon” banner still live over the real pricing page. Placeholder Lorem Ipsum in a legal page nobody circled back to. These aren't bugs in the traditional sense — the code does exactly what it was told to do. They're artifacts of the switch from “building” to “live” never getting a final pass.
Invisible on the device you tested on
A hero image that looks crisp on a retina laptop screen and takes four seconds to load on a throttled mobile connection. Tap targets sized correctly for a mouse cursor and too small for a thumb. A layout that never shifts on your monitor because your connection is fast enough that everything loads before you'd notice. Performance and mobile UX problems share this pattern: they're real on the conditions most visitors actually have, and invisible on the conditions most builders actually test with.
Decided by omission, not by choice
No one decided the homepage shouldn't have a meta description — it just never got written, so the field is blank. No one decided against a primary call to action above the fold — the button exists, it's just three scrolls down because that's where the design naturally put it. A lot of launch-day gaps aren't wrong choices, they're defaults that never got revisited once the page was “done.”
Correct in isolation, broken in combination
A contact form with no visible label, using only a placeholder — fine for a sighted mouse user, a real barrier for a screen reader. Light gray text on a white background, chosen for a clean aesthetic, that fails contrast requirements for a meaningful share of visitors. Individually reasonable design decisions that combine into a page that quietly excludes people the builder never pictured using it.
What actually catches these before launch
The honest answer is a systematic pass through every dimension, not a gut check on the pages you personally look at most. That's the entire reason LaunchGraded exists as a checklist first and a product second — see the whole thing at the free launch checklist, or let the scanner run all 51 checks for you in about two minutes.