https://achecks.org/checker/index.php#output_div
https://validator.w3.org/nu/?doc=https%3A%2F%2Fdavitis.gr%2Findex.php%2Fcontact
https://wave.webaim.org/report#/https://davitis.gr/index.php
Παλαιό site : https://www.davitis.gr/old/index.php/el/
contrast test : https://toolness.github.io/color-contrast-pal/