Re: ADSL, VDSL built in / requires modem
"More info required; it's all well and good you're testing the wireless speeds, but surely one of the other considerations is if the model is an ADSL / VDSL / Requires a cable/vdsl modem.
Hard to tell without going to each and every manufacturer page, (fritzbox, buffalo, tp-link excepted)."
Not that hard. The fact Orestis specifically mentions the presence of xDSL modems means it's a reasonable assumption that the others do not.
Or you can just look at the back-panel photos. If it's only got RJ45 sockets with one labelled "WAN" then you'll need a modem. If it's got an RJ11 socket labelled DSL then it's got it's own modem. Should be able to tell at a glance whether a modem is present.
Fair point that a matrix for other features like guest networks, firewalls, IPv6, VPN, etc would be useful.