When I test speed in Firefox, there are some strange requests tied with SSL certificate at the beginning of the waterfall:
ocsp.int-x3.letsencrypt.org when cert issuer is Let’s encrypt
ocsp.globalsign.com/rootr2 and ocsp.comodoca.com when issuer is Globalsign (nginx.com) https://www.webpagetest.org/result/180116_TK_77e6763b66a6e719f94ff74bc7baf78f/
But it isn’t always present in waterfall. For example site troyhunt.com (Comodo is cert issuer) has no such request: https://www.webpagetest.org/result/180116_KW_74a216e45acd585bbae822967ec43e5e/1/details/#waterfall_view_step1
May somebody explain me what it is? Can I somehow reduce these requests? Why chrome doesn’t do such requests?