I use Blogger and I use enetation.co.uk for my commenting. When I get my email notification of a comment, it tells me the item number for the article that the comment is for, but that was not very helpful in finding the article, especially if it was very old. But I've started including the full link to each article after that article in my blog. See down below after this one (and every one) where it says "External link:". Now, when I get a comment notification, I put the item number (e.g., 106856521028138808 for this article) and "official record" in a google search, and google brings up the page where the article appears. I go to that page and do a control-F search for the number, and I'm there. I don't know how I would deal with this otherwise.
Another nice thing about this is that you and others can copy the link to the item without having to click on it.
Here's the code to add to Blogger to add this feature. Make sure it appears between the tags: