How to double-check a backlink before you hit submit (www, trailing slashes and UTM tags)

You've landed a guest post. The editor asks for the link. You type your site's address into the form, and then you hesitate.

Should it be www.yoursite.com or yoursite.com? Does it need the slash at the end? Somebody told you to add ?utm_source= to everything. Does that break it?

These are the questions nobody explains, so here's the short version of each, and a quick check to do before you hit submit.

The easiest rule: copy it from your address bar

Open your own page in a browser. Wait for it to load. Then click the address bar and copy what's there.

That's the right URL. Whatever your site did on the way there, adding or removing www, adding or removing the slash, switching to https, it's already done. You're copying the final version.

Everything below explains why that works.

www vs non-www

www.yoursite.com and yoursite.com look like the same site, and to a person they are. Technically, they're two different addresses.

Almost every site picks one and redirects the other to it. Type www.castizospain.com and you'll land on castizospain.com. That's on purpose.

So does it matter which one the backlink uses?

Not much, as long as the redirect works. Google follows the redirect and treats the two as one page. A link to the "wrong" version still counts.

The right one is still better. A direct link skips the redirect step. It's one less thing that can break if you change hosts or move your site later. And it looks tidier.

How to tell which one your site uses: type both into a browser and see which one you end up on.

Trailing slash or not

This is the slash at the very end: yoursite.com/guide vs yoursite.com/guide/.

On a homepage, it makes no difference. yoursite.com and yoursite.com/ are the same address. Browsers add the slash for you.

On any other page, they're technically two different URLs. Google says it treats them separately, but it's fine either way as long as one redirects to the other, or both show the same page with a canonical tag pointing at one.

Most website builders handle this for you. WordPress, for example, usually adds the slash and redirects the version without it.

So the same rule applies. Visit the page, copy the address bar, and use whichever version you land on.

UTM tags

UTM tags are bits you add to the end of a link so your analytics can tell where a visitor came from. They look like this:

https://yoursite.com/guide/?utm_source=coolblog&utm_medium=guest-post

When someone clicks, Google Analytics reads the tags and files the visit under "coolblog / guest-post." Google's help page lists the standard ones.

How to add them without breaking anything

• Start with your clean URL, the one from the address bar.
• Add a ? and then your first tag: ?utm_source=coolblog
• Add more tags with &: &utm_medium=guest-post
• If your URL already has a ? in it, don't add a second one. Use & for every tag.
• If your URL ends with a #section, the tags go before the #.

The slash doesn't change any of this. yoursite.com/guide/?utm_source=x and yoursite.com/guide?utm_source=x both work, as long as the part before the ? is the right version of your page.

Do you need them on a backlink?

Usually not.

Your analytics already shows which site sent a visitor. Google Analytics lists it under referrals without any tags at all. UTM tags help when you want to group visits your own way, like comparing two sponsored posts, or tracking a newsletter where there's no referring site to show.

Do UTM tags hurt the link? Technically, the tagged address is a different URL. In practice, Google groups duplicate URLs like these together, especially when your page has a canonical tag, which most website builders add for you.

My rule: for a normal earned link, keep it clean. For a sponsored post or a newsletter where I want to compare results, add tags.

The two-minute check before you hit submit

Before you send the link to an editor, or paste it into a form:

1. Open the link in a private window. Does the right page load? No login wall, no 404, no "page not found."
2. Look at the address bar after it loads. Did it change? If it did, use the new version instead.
3. Check the spelling one more time. A typo in a domain is the most common way a "live" link goes nowhere.
4. Check it's https. If your site has https, the link should too.
5. If you added UTM tags, click it once. Make sure the page still loads and the tags show up in the address bar.
6. Pick your anchor. Your site's name or a plain description reads naturally. Don't stuff in an exact keyword.

Once the post goes live, do one more check. Open it, find your link, and click it. Editors sometimes retype links, and a missing letter is easy to miss.

What DR Buddy does with all of this

When you add a link to DR Buddy, we treat www and non-www, the trailing slash and any UTM tags as the same link to your site. So if an editor used www when you sent them the version without it, your link still shows as live.

What we can't do is fix a typo. If the link points to the wrong domain, it shows as Link removed, because the link to your site isn't there. If you see that on a brand new link, check the spelling first. More on what each status means in Why did my backlink disappear?