What
@bulkbiker said above is correct. NHS England has advised all surgeries to put coded test results, consultations, and many other interesting features on line, and most seem to have complied with it. My own surgery has. I can see all my blood test results for whatever reason they were taken back several years, plus (believe it or not) all my immunisations back to 1948 apart from a gap somewhere in the middle, my blood pressure checks, weight, and other bits, all in text and also in graph form, plus a list of illnesses and injuries I've had in the past including a broken leg in 1952. It is remarkable what information it gives.
Mine is via Patient Access and required me to complete a registration form at the surgery along with various pieces of ID followed by an agreement signature of a GP. I can now access it with my own passwords anytime I wish. On my last HbA1c and other blood tests, I had the blood taken one morning and they were up on the screen the following morning.