I've used both, no mention of a date on either check:
'For Address 123 CHAPEL HILL, BRAINTREE, CM7 3QX on Exchange BRAINTREE
Your exchange is ADSL enabled, and our initial check on your address indicates that your line should be able to have an ADSL broadband service that provides a fixed line speed up to 2Mbps.
Our check also indicates that your line currently supports an estimated ADSL Max broadband line speed of 4Mbps; typically the line speed would range between 3Mbps and 7Mbps.
Our check also indicates that your line currently supports an estimated ADSL2+ broadband line speed of 5.5Mbps; typically the line speed would range between 3Mbps and 8Mbps. Our test also indicates that your line could support an estimated ADSL 2+ Annex-M broadband upstream line speed of 1Mbps and downstream line speed of 5.5Mbps; typically the downstream speed would range between 3Mbps and 8Mbps.
The actual stable line speed supportable will be determined during the first 10 days of use. This speed may change over time, to ensure line stability is maintained.'