Advise

Yes Thank you

Ah well still get visits from numerous ips in numerous countries from semalt.com/ may have to ip block countries

What is “semalt.com”? is it the Referer or something else? In order to block something you need to know what to block. From the link you posted that person stated that the domain was the Referer.

What is captured or logged on your end that is the same – that is what you would want to block. Blocking by IP address is foolish.

Well that is the question.
What / who are they
https://www.google.co.uk/search?q=semalt.com&oq=semalt.com&aqs=chrome..69i57j69i59l2j5.6820j0j4&sourceid=chrome&espv=210&es_sm=93&ie=UTF-8#q=What+is+Semalt%3F

In my stats i get semalt.com/competitors_review.php?u=https://mywebsiteurl

So as yet i am unsure how it works and why so many ips from so many countries all visit with same Host Name/Web Page/Referrer

How are you getting your Stats? Within WordPress with a plugin or are you getting Stats from a 3rd party app or your Control Panel?

Where did you get that info? Where are your Stats?

https://www.berkshirepubguide.co.uk/semalt.jpg

stats are from statcounter.com

LOL you cannot control something that is outside of your website. ??

no but if the stat code is in my website code then they must visit my site to enable the stats to register?
something has to have visited the site right?

that url with picture is not my sites url BTW

I have no idea what statcounter is or how it works. Explain how it works and then maybe you can create some php code to create a condition for statcounter. Since I have no idea how it works I will not attempt any guesses.

statcounter works like google analytics, you place the code on your site ( in this case a plugin for statcounter.
It then tracks similar to google analytics

<!-- Start of StatCounter Code for Default Guide -->
<script type="text/javascript">
var sc_project=9083xxxxx;
var sc_invisible=1;
var sc_security="808dxxxxxx";
var scJsHost = (("https:" == document.location.protocol) ?
"https://secure." : "https://www.");
document.write("<sc"+"ript type='text/javascript' src='" +
scJsHost+
"statcounter.com/counter/counter.js'></"+"script>");
</script>
<noscript><div class="statcounter"><a title="web analytics"
href="https://statcounter.com/" target="_blank"><img
class="statcounter"
src="https://c.statcounter.com/xxxxxxxxxxxxx/"
alt="web analytics"></a></div></noscript>
<!-- End of StatCounter Code for Default Guide -->

Odd thing is it only appears to be happening on my WP sites

Yep I just looked at the statcounter site and saw that. Logically if it works like Google Analytics and it looks like the same type of thing where a counter.js file is loaded on site load then that counter.js file captures the visitor. So even though the visitor never made it to your site’s php files and code that visitor is still captured by the counter.js file. That file is located on the statcounter.com domain and is loaded from your site, but you have no control over that js file since it is outside of your website.

With that said, you might be able to wrap that statcounter code in a condition.

Example:

if is not X
load the counter.js file
else
die punk/redirect somewhere else/etc