Reverse engineering

At reference 1 I talked about companies like Google plugging holes in your webpages with advertisements. For which they chucked you a few lollipops while collecting the big bucks themselves.

By way of illustration, I was looking for tongue twisters this morning and Bing turned up reference 2, and there was an advertisement for Interparcel UK, whose website I visited in the margins of the cheese activity noticed at reference 3.

By way of experiment, I opened the same page in four different tabs in Edge. All four tabs had advertisements inserted before items 50 and 100. Two of them had advertisements inserted near the top of the page. Of the total of 10 advertisements, 8 were for Interparcel. One was for a trade portal called esources, of whom I had never heard, but who are to be found at reference 7. And the last appeared to be suggesting that peanut butter - which I eat from time to time, but without electrical connection that I can think of - caused bowel problems - which I do know about, but again without electrical connection that I can think of.

So clearly a predilection for the spots before 50 and 100. So perhaps the creator of this web page marked these spots for the convenience of Google (or whoever it was). An optional but very prominent spot at top of the web page, to be filled on a probabilistic basis, say half the time. But why is Interparcel so prominent? Are they paying Google lots of money? How did the other two get to be there?

I associate now to a colleague of more than thirty years ago who used to include deliberate errors in his postcode to help him trace the source of junk mail that he was getting. Maybe not such a good idea now that, I imagine, a lot of sorting at sorting offices is done by machine on the basis of that postcode.

Reference 1: http://psmv4.blogspot.com/2020/05/plugging-holes.html.

Reference 2: https://pun.me/pages/tongue-twisters.php.

Reference 3: https://psmv4.blogspot.com/2020/05/securing-cheese-supplies.html.

Reference 4: https://www.bodyfokus.co.uk/. A German health food gang, a foreign version of Holland & Barrett. Are they connecting through Grape Tree, a shop which I use occasionally. I have certainly visited their website. Could the peanut importers' trade association sue them for slander? Should I tip off our supplier, at reference 5? I start to feel a great project for secondary school children coming on, very suitable for home learning.

Reference 5: https://www.wholeearthfoods.com/.

Reference 6: https://psmv3.blogspot.com/2017/01/nuts.html. A mention for reference 5.

Reference 7: https://www.esources.co.uk/. Some kind of electrical spin off from Interparcel?