Itqualityassurance
What is real-time validation?
A real-time validation service will check your subscriber information for you as it is entered, correcting your customers' typos and misspellings. Visitors often leave out hyphens or misspell their emails' domain names, making it impossible to contact them in the future.
What is inline form validation?
In short, inline validation is an effort on behalf of the form to help users correct information as they go, ideally so that when the point comes to submit the form, they are more likely to submit it on the first attempt. The more failed attempts a user makes to submit the form, the more likely they are to give up.
Should you validate on Blur?
Don't validate while typing, for exactly the reason you describe. There are studies/observations that show the people generally complete the entire form and then return to values that are incorrect. Even if you validate on blur they will tend to complete all fields and will then return to fix.
