Connecting legacy Mac OS (10.3.9) to modern HTTPS via TLS

I'm using an old iMac G3, running Mac OS 10.3.9 Panther, for research purposes. My concern is not security - I don't put sensitive information on this machine, nor do I mind if the integrity of the Operating System is compromised. I just want to be able to connect to the internet for benchmarking purposes. I am aware that the specs of this machine are too low to run most websites. As you're probably aware, the SSL security protocols on this version of Mac OS X are out of date enough to prevent me from visiting anything aside from Google. One step I've taken care of is following the directions from https://apple.stackexchange.com/questions/422332/how-do-i-update-my-root-certificates-on-an-older-version-of-mac-os-e-g-el-capi : > Some operating systems hold onto the expired R3 > DST Root CA X3 chain even if your server is no longer using it. Try a restart of the affected client device. > > For older macOS not updated by Apple: > > Download the ISRG Root X1 certificate file from http://x1.i.lencr.org/ > Open the Keychain Access app and drag that file into the System folder > of that app. Find the ISRG Root X1 certificate in System and double > click on it, open the Trust menu and change "Use System Defaults" to > "Always Trust", then close that and enter your password to confirm the > change (if prompted). I seem to be able to connect to Google via HTTPS, which is a step up, but sites like Wikipedia still prevent me from accessing them for security reasons. What else could I try doing in order to get this computer on the internet (for better or worse)?