Patrick
I recommended your article about GIMP processing in black and white - pseudo greys, on another forum (DP Review / Black and White) and posted a link to your article
One of the posters followed the link and got a security certificate warning (original certificate issued to another site) and was nervous about continuing onto the article.
You may be missing traffic and hits to your site because of the security warning.
Just a thought
Regards
Phil
Hi @Phil_Howcroft! I’ve moved this over the Meta, as it seems most appropriate here.
Also, thank you very much for a) sharing! and b) letting me know about the security issue.
In a nutshell, that particular article had some images that were not served securely, so security software may flag it. I’ve gone through and replaced all the non-secure image links with secure ones, and hopefully things should be running fine now! 
(By all means yell at me if this is not the case!)