Imagine you have a law office at 123 Main Street. Now imagine that the post office also has you listed at "123 Main St.," "123 Main Street, Suite A," and "123 Main St, Floor 1." They're all the same building, but the mail carrier is confused about which address is the "real" one. That's exactly what happens when Google finds multiple URLs that all lead to the same page on your law firm's website. The result? Your search rankings get diluted, and none of those pages perform as well as they should.
What canonical URLs actually mean
A canonical URL is simply the version of a web page address that you want Google to treat as the official one. Think of it as your preferred address. You tell search engines: "Hey, if you find copies of this page at different addresses, this is the one that counts."
In the code of your website, this is handled by a small tag that looks like this (don't worry, you don't need to write it yourself):
<link rel="canonical" href="https://www.yourfirm.com/practice-areas/family-law" />
This tag tells Google, "No matter how someone arrived at this page, treat this specific URL as the one true version."
Why this matters for your law firm
Without canonical URLs, Google may discover the same page content at several different addresses. This happens more often than you'd think. Common causes include:
- www vs. non-www:
www.yourfirm.com/aboutandyourfirm.com/aboutcan appear as two separate pages. - Trailing slashes:
/family-lawand/family-law/might both exist. - Tracking parameters: Marketing campaigns can add extra characters to your URL, like
?utm_source=newsletter, creating what looks like a brand-new page. - HTTP vs. HTTPS: If both versions are accessible, Google sees two pages with identical content.
When Google finds duplicate pages, it has to pick one on its own -- and it might not pick the one you want. Worse, the ranking "power" (called link equity) gets split between all the copies instead of being concentrated on a single strong page. For a law firm competing in a crowded local market, this can mean the difference between appearing on page one and being buried on page three.
How to check if your site has this
Here's a simple way to investigate, even if you're not technical:
- Open your website in Google Chrome.
- Navigate to your most important page (like your homepage or main practice area).
- Right-click anywhere on the page and select "View Page Source."
- Press Ctrl+F (or Command+F on a Mac) and type
canonical. - You should see a line that includes
rel="canonical"followed by a URL. That URL should match the address in your browser's address bar.
If you don't find the word "canonical" at all, that's a red flag. It means Google is guessing which version of your pages to rank.
You can also type site:yourfirm.com into Google and look at the results. If you see the same page listed multiple times with slightly different URLs, you likely have a canonical URL problem.
What to do next
If you suspect there's an issue, here are your options:
- Ask your web developer to add canonical tags to every page, pointing to the preferred URL version.
- Pick one format and stick with it -- either www or non-www, with or without trailing slashes. Be consistent everywhere.
- Set up 301 redirects so that any non-preferred URL version automatically sends visitors (and Google) to the correct one.
- Use a monitoring tool: This is one of the first things the LexGrow SEO platform checks during a visibility audit, flagging duplicate URLs and missing canonical tags before they can hurt your rankings.
Canonical URLs are one of those behind-the-scenes details that can have a surprisingly large impact on how well your law firm shows up in search. The good news is that once they're set up correctly, they mostly take care of themselves. Take fifteen minutes to check your site today -- your future rankings will thank you.