The common reasons.
THEY DID NOT FIND THE ANSWER
The page did not address what brought them.
THEY COULD NOT TELL WHAT YOU DO
Vague description, jargon, or a homepage that says nothing specific.
THEY DID NOT TRUST YOU
No address, no phone number, no evidence you are real.
CONTACTING YOU WAS TOO MUCH WORK
A long form, or the number buried.
IT DID NOT WORK ON THEIR PHONE
Most visitors are on phones.
IT WAS TOO SLOW
Particularly on mobile data.
THEY COULD NOT FIND THE PRICE
Many leave rather than ask.
THERE WAS NO NEXT STEP
The page informed them and then stopped.
WHAT NONE OF THESE ARE
Complicated. All are fixable.
HOW TO FIND YOUR OWN
Ask someone who has never seen your site to find a specific thing and contact you.
Watch without helping.