http://browsercookielimits.squawky.net/
In Chrome 69 I got the following results:
– Guessing Max Cookie Count Per Domain: 180
– Guessing Max Cookie Size Per Cookie: 4096 bytes
For Firefox 62:
– Guessing Max Cookie Count Per Domain: NA ( it kept trying to kill the script )
– Guessing Max Cookie Size Per Cookie: 4097 bytes
Safari 11.1.2 under Mac OS 10.13.6:
– Guessing Max Cookie Count Per Domain: NA
– Guessing Max Cookie Size Per Cookie: 4097 bytes
Safari 11 in iOS 11.4.1:
– Guessing Max Cookie Count Per Domain: NA
– Guessing Max Cookie Size Per Cookie: 4097 bytes