A usable testimonial starts from something the customer actually said, not something you wish they had said. Tighten their words without inventing new ones, keep the one specific result or moment that makes the praise believable, and cut the vague superlatives that could describe anyone. Then send the final version back and get an explicit yes before you use it. You are editing praise you already have, not writing a quote from scratch.
Start from real praise
The raw material is already there: a line in a thank-you email, a passing comment after a call, a sentence in a review. Your job is to find the good bit and make it read cleanly, not to author a glowing quote and put the customer’s name under it. If they never said it, it does not go in the testimonial, however flattering it would be. Working from real words keeps you honest and, usefully, keeps the result specific, because real customers mention real things.
Why does specific beat glowing?
Because a reader has seen a thousand testimonials that say a company was ‘amazing’ and ‘a pleasure to work with’, and none of them persuade anyone. What persuades is the concrete detail: ‘they cut our onboarding from three weeks to four days’ tells a prospect exactly what they might get. When you trim a rambling comment, protect the specific number, the before-and-after, or the small moment that proves it happened. Cut the empty adjectives first, and keep the detail only this customer could have given.
Tighten, do not embellish
Most raw praise rambles. Someone means well, so they repeat themselves, hedge, and wander before landing on the one line that matters. Editing that down to its strongest sentence or two is genuinely useful and completely fair. Adding to it is not. Do not insert a number they did not give, an outcome they did not mention, or a level of enthusiasm they did not show. If the praise is warm but vague, a shorter honest testimonial beats a longer invented one.
Get sign-off, every time
This is the rule you do not skip, even when all you did was tidy their wording. Send the finished testimonial back and get an explicit yes before it goes anywhere public. It is their name and reputation attached to it, so they get the final say on how they are quoted. Sign-off protects both of you: it catches anything you tightened a shade too far, and it means nobody can claim you put words in their mouth. ‘Happy for me to use this?’ takes them a moment to answer.
Attribution makes it credible
A testimonial with a real name, role, and company behind it is worth far more than an anonymous one, because a reader can see it came from a real person. Ask what the customer is comfortable being credited as. First name and company, full name and title, or first name only are all fine if that is what they agreed to. ‘Anonymous’ or ‘a happy client’ is honest when that is all you have permission for, but it is the weakest option, so it is worth asking for more.
Common mistakes
- Writing a polished, glowing quote the customer never actually said and attaching their name to it.
- Keeping the vague superlatives (‘amazing’, ‘a pleasure to work with’) and cutting the concrete result that was the only persuasive part.
- Publishing before the customer has seen the final wording and said yes to it.
- Stripping out every trace of attribution, so a real testimonial ends up reading like one you made up.