Allow early data Extra Certs in Chain Resumes Server SSL Labs Report Arduino RP2040 www.bbc.co.uk No Yes Yes B OK www.protonmail.com No Yes Yes A+ OK www.miracl.com No Yes Yes A+ OK www.facebook.com No No Yes B OK tls13.ulfheim.net No Yes Yes A+ OK tls13.cloudfare.com No No Yes B Rare fails on ECC608? www.google.com No Yes No (?) B OK slack.com No No Yes A+ OK owasp.org No No Sometimes A+ OK mozilla.org No Yes Sometimes A OK swifttls.org Yes Yes Yes A OK tls13.1d.pw No Yes No A OK realpython.com Yes No Yes B OK www.padok.fr Yes No Yes B OK www.fitbit.com No Yes No A OK st.com No Yes Yes A OK www.academia.edu Terrible Cert Chain! X+X+W+Y+Z-> ca ? Yes No A+ No www.rsaconference.com Yes No Yes B OK blog.knowbe4.com Yes No Yes B OK ec.europa.eu No Yes No B OK www.crowdsupply.com No No Yes A+ OK iscc2021.unipi.gr Misconfigured cert chain ? No B No www.kinvaraskincare.com Yes Yes Yes A OK www.bundledocs.com No Yes No A OK