How we get prices

Prices change often and differ by city, so we are strict about what we show.

1. We read the price on the lab’s own page, or on a listing that names the lab, and note the city if the page shows it.
2. We save the link and the date we checked.
3. We show the price with that link and date. If a page does not say which city the price is for, we say so.
4. If we cannot find a price, we leave it out. We do not guess.

Last big check: 13 Nov 2026. Labs and readers can send corrections through the contact page.