I was reading some articles on jacobinmag.com and I noticed that their letter j has a sort of tick or tail on the right hand side at the base. I was wondering if anyone could tell me what this tick is called or provide some info about where it originates. Thanks! Pictured is a word with the j I'm describing.
I also see that tick on that website. There's something suspect to that Antwerp font on jacobinmag.com. Looking at the code, the font-face is Antwerp. Look up Antwerp font and I found this link: https://www.a2-type.co.uk/antwerp which shows the J without the tick (u&lc). Digging deeper, I noticed the Antwerp webfont on the typographer's website is called f-Antwerp_Light. I would suspect that the webmaster from jacobinmag.com is hosting a custom font that was recoded with a glitch. Another test confirms this by changing the font on jacobinmag to Arial shows the J as just being the normal J as we know it.
The answer to your question is, "there is no name for that improvised nick by the webmaster."