Github hosting (git-pages)

I've finally built my personal webpage, with my work portfolio, what i do info, skills etc.. Its just html+css+js no server-side. My question is, for credibility, rep, professionalism matter, is it a bad idea do host it at github and leave the default url? (username.github.io)

Use case: You as a employer would consider other person with a private domain over me for example?