Not just the UK
I've been unemployed in the UK and here in California. Here they have a similar website (caljobs) that you have to sign up for and visit every week, though you enter your job search history on the paper forms they send you int he post (no having to drag yourself down to the JobCentre every fortnight to sign on!) At least the California site is run by the state, not contracted out to Monster, purveyor of fake job ads.
The last time i was unemployed in the UK was 2001, and I was given a slip to fill out for my new claim interview where I had to put down the details of two jobs i had applied for. I duly complied, but the young lady doing the interview looked surprised when i handed it to her, saying "oh, people don't usually bother to fill that out". One of the jobs i had applied for, listed as just "Administrative Assistant" turned out to be for a claims adviser at the jobCentre!
Here they're alot more strict about not complying with regulations about recording your work history. i put down that i had done some voluntary work, and had a phone call from the Unemployment office warning me that if i volunteered for more than so many hours a week, my benefits would end.
I'm now gainfully employed, but no thanks to Caljobs...got my current job after doing voluntary work.
It was so much better when you had jobs in the paper and sent letters and forms, at least you had a folder full of proof to take with you when you signed on! :)