What the hell is this? Well, by all means check out the heartbleed.
Looking for TLS extensions on https://brujobs.be
ext 65281 (renegotiation info, length=1)
ext 00000 (server name, length=0)
ext 00011 (EC point formats, length=4)
ext 00035 (session ticket, length=0)
ext 00023 (extended master secret, length=0)
TLS extension 15 (heartbeat) seems disabled, so your server is probably unaffected.