The portfolio redirects to https://schoolhouse.world/certification/about if you'd like to learn more about certifications. However, the page is slightly outdated (e.g. we offer KA certs for topics beyond maths, you can tutor topics outside of maths and SAT topics, we have multiple college partners now, etc. It also might be helpful to add a note/FAQ to that page about honorary certs not being included in the portfolio?).

It's not a huge deal since the page accurately describes the certification system, but I think updating it for clarity sometime in the future would be helpful.