SMX is the biggest Search Marketing Conference series worldwide, and this year’s SMX London was kicked up a notch by two of Onely’s finest: Bartosz Goralewicz and Senior Technical SEO Maria Chołuj (Cieślak). Bartosz talked about the latest in advanced technical SEO, and Maria focused on what SEOs needed to know about JavaScript and PWAs. By all accounts, they both did exceedingly well.