How to Check if a Website Is Running Google Ads

You want to know if a competitor is spending on Google Ads. Or maybe you set up your own campaign and you’re not seeing the ad anywhere. Either way, the answer takes about 30 seconds if you know which tool to use.

Most articles on this topic give you 10 methods and expect you to figure out the best one. That wastes your time. Here are five methods that actually work, ranked from fastest to most thorough, plus what each one can and can’t tell you. The first one alone solves 80% of cases.

Google Ads Check

Method 1: Use the Google Ads Transparency Center (The Fastest Way)

Google launched the Ads Transparency Center as a public, searchable database of every verified advertiser running ads on its network. This is the official, definitive tool. Forget the older guides that don’t mention it.

Here’s how to use it.

1. Go to adstransparency.google.com
2. Type the advertiser’s domain (like lululemon.com) or company name in the search bar
3. Apply filters for country, date range, and ad format if needed
4. Browse every ad they have running, plus historical ads going back up to 30 days

What you actually see in the results: every text ad, image ad, video ad, and Shopping ad the advertiser is running, the regions where each ad runs, when each ad first appeared, and the format of each creative.

This is the single most powerful Google ad checker available right now. It is free, official, and covers Search, YouTube, Display, Maps, Shopping, and Play placements.

A common issue: typing a brand name returns dozens of unrelated advertisers with similar names. Search by the exact domain instead. For Gap, search gap.com. For Nike, search nike.com. This filters to only verified ads from the actual advertiser.

The Transparency Center has one major limitation. It does not show you which keywords each ad targets. To see keyword strategy, you need Method 5.

Method 2: The “About This Ad” Shortcut (When You’re Already Seeing an Ad)

If you spot an ad in the wild and want to know who’s behind it, this is the fastest way to identify the advertiser without any tools.

Click the three-dot menu (⋮) on any Google ad you see. A panel opens called “About this ad” or “My Ad Center.” It shows the legal advertiser name, the country they verified in, and a direct link to their Transparency Center page.

This works on Google Search ads, YouTube ads, and Display Network ads. It’s especially useful when ads come from parent companies you wouldn’t recognize. An ad selling “premium skincare” might actually belong to L’Oreal or Procter & Gamble. The three-dot menu tells you immediately.

The shortcut also helps when retargeting ads follow you around the internet. Right-click, find out who’s tracking you, and decide whether to investigate them in the Transparency Center.

Method 3: The Manual Search Method

The oldest way to check is also the most intuitive. You search Google for keywords the business would target, and you look for their ad in the results.

Steps:

1. Open Google in an incognito or private browser window
2. Search for keywords related to the website’s products or services
3. Look at the top and bottom of results for entries labeled “Sponsored” or “Ad”
4. Check if the target website appears

A few important notes:

Search in the country and region where the advertiser sells. A Toronto company’s ads will not show if you search from a US IP address with the wrong region settings.

Use incognito mode. Your normal browser carries history and personalization that can change which ads show up.

This method has two big problems. First, it only shows ads triggered by the specific keyword you search. The advertiser might be running 200 other keywords you’d never guess. Second, repeated searches for your own brand can artificially inflate your impressions without clicks, hurting your Quality Score over time.

For checking your own ads, never use this method. Use Method 4 instead.

Method 4: Inspect the Website’s Source Code for Google Ads Scripts

This method tells you if a website has Google Ads tracking installed. It does not tell you if active campaigns are running, but it strongly suggests the business uses or has used Google Ads.

Here’s how:

1. Open the website
2. Right-click anywhere on the page and select “View page source” or press Ctrl+U (Cmd+U on Mac)
3. Use Ctrl+F to search for these specific terms:

googleadservices.com
googleads.g.doubleclick.net
googletagmanager.com
gtag('config', 'AW-

Finding any of these means the website has Google Ads tags installed, typically for conversion tracking or remarketing. The AW- prefix specifically identifies a Google Ads conversion ID.

You can also use free browser extensions to do this faster:

Google Tag Assistant verifies which Google tags are active on a page. It’s a Chrome extension from Google itself.

BuiltWith reveals the full marketing technology stack a website uses, including Google Ads, Microsoft Ads, Meta Pixel, and conversion tracking systems.

WhatRuns does the same as BuiltWith with a cleaner interface.

The limitation here is important. A website can have Google Ads scripts installed but no active campaigns. Some businesses paused their campaigns months ago but never removed the tracking code. So Method 4 confirms historical or potential Google Ads usage, not current activity.

For current activity, combine Method 4 with Method 1.

Method 5: Use Third-Party Tools for Deeper Intelligence

The Transparency Center shows you ad creatives. It does not show you keywords, estimated spend, or keyword-level performance. For that intel, you need third-party tools.

SEMrush Advertising Research shows you the keywords a competitor is bidding on, their estimated monthly ad spend, ad copy variations, and which landing pages get the most traffic from paid search. The free trial gives limited but useful data. Full access starts around $140 per month.

SpyFu focuses specifically on PPC competitive intelligence. It shows historical keyword bidding patterns, ad copy history going back years, and budget estimates. It is generally cheaper than SEMrush at around $39 per month.

Similarweb estimates paid traffic share, top paid keywords, and ad performance metrics for a website. Free tier is generous for basic checks.

Auction Insights (inside Google Ads) is free if you have a Google Ads account. Open any campaign, click “Auction insights” in the menu, and Google tells you exactly which competitors share impressions with you on the same queries. This is the most accurate data possible because it comes directly from Google.

The combination of the Transparency Center plus Auction Insights plus one paid tool gives you a complete picture of competitor activity. For most Toronto businesses we work with at our PPC management service, this is the standard competitive intelligence stack.

How to Check if Your Own Google Ads Are Running

If you just launched a campaign and want to verify it’s live, do not search Google for your own keywords. This is the mistake almost every new advertiser makes.

When you search for your own ad, you generate impressions without clicks. Repeated impressions without clicks tell Google your ad is irrelevant, which lowers your Quality Score and reduces how often your ad shows. You can literally hurt your own performance by checking too often.

Use these methods instead:

Ad Preview and Diagnosis Tool lives inside your Google Ads account. Go to Tools → Planning → Ad Preview and Diagnosis. Enter your keyword, location, and device. The tool shows your ad in context without recording an impression.

Campaign status indicators in your dashboard show whether each ad is Enabled (green circle), Paused (grey), or Disapproved (red with policy reason).

Impressions data in the Ads & Extensions tab. If your ad has zero impressions after 48 hours, something is blocking it. Common causes:

• Budget exhausted for the day
• Bid too low to enter the auction
• Ad still in review
• Disapproval due to policy violation
• Targeting too narrow (geographic, demographic, or audience)
• Negative keywords accidentally blocking your own terms

What Each Method Reveals (and What It Won’t)

Quick reference for which method to use depending on what you need.

What You Want to Know	Best Method
Is this brand running ads right now?	Transparency Center (Method 1)
Who is behind this ad I just saw?	Three-dot menu (Method 2)
What ads show for my keyword?	Manual search incognito (Method 3)
Does this site have Google Ads tracking?	Source inspection (Method 4)
What keywords does this competitor bid on?	SEMrush or SpyFu (Method 5)
Which competitors share my exact impressions?	Auction Insights (Method 5, free)
Is my own ad running properly?	Ad Preview and Diagnosis Tool

The truth most articles avoid: no single method tells you everything. A complete competitive picture needs at least the Transparency Center for current creative, Auction Insights for actual overlap data, and one paid tool for keyword intelligence.

Common Reasons You Can’t Find a Website’s Ads

You searched the Transparency Center, checked the source code, ran manual searches, and found nothing. Here’s why that happens.

The advertiser pauses campaigns regularly. Many businesses run ads in bursts. Holiday campaigns, seasonal promotions, product launches. Outside those periods, no ads show.

Geographic targeting excludes your location. A company might only advertise in specific cities or regions. If you check from outside that area, you see nothing.

The advertiser only runs Display or YouTube ads. Manual Google searches only reveal Search ads. Display and video campaigns require the Transparency Center to verify.

The website uses a parent company name on Google Ads. A small brand might be advertised under a holding company’s verified name. Use the three-dot “About this ad” menu to surface the real advertiser.

Budget exhausted by the time you searched. Smaller advertisers often run out of daily budget early in the day. Their ads might be running in the morning but invisible by afternoon.

The advertiser stopped Google Ads entirely. Some businesses shift entirely to Meta Ads, LinkedIn Ads, or organic SEO. If you see Google Ads tracking scripts but no current ads, this is likely.

How to Use Competitor Ad Intel to Improve Your Own Campaigns

Knowing a competitor runs Google Ads is just the start. The real value comes from what you do with that information.

Study their ad copy. What promises, offers, and emotional triggers are they using? Which headlines repeat across multiple ads? Repetition signals proven winners.

Map their landing pages. Click through (carefully, since you’ll register an ad click) and see how their funnels work. What’s the offer? Where is the form? How does the page convert visitors?

Track their ad rotation patterns. If a competitor publishes new ads every week, they’re testing aggressively. If their ads haven’t changed in three months, they’ve hit a winning formula and you can study it deeply.

Compare their ads to their organic positioning. Are they targeting different messages on paid vs organic? Many companies do, which reveals what they think drives conversions versus what drives traffic.

Use Auction Insights weekly. If a new competitor shows up overlapping with you on key queries, react fast. Their bids might be pulling down your impression share or pushing up your CPC.

Smart agencies treat competitor ad intel as ongoing surveillance, not a one-time check. We document Toronto and North York competitor activity weekly for Google Ads management clients and adjust their campaigns based on what we see.

For complementary intelligence on what keywords to block versus chase, see our guide on Google Ads negative keywords examples by industry.

Sum Up

Five methods, ranked by speed.

Method 1 (Transparency Center) solves most cases in 30 seconds. Method 2 (three-dot menu) is your in-the-wild shortcut. Method 3 (manual search) confirms specific keywords. Method 4 (source inspection) reveals tracking installation. Method 5 (paid tools) unlocks keyword intelligence and spend estimates.

The mistake most people make is using only Method 3. That misses 80% of competitor activity. Start with the Transparency Center, layer in Auction Insights from your own account, and you have a competitive intelligence system that beats most agencies.

For checking your own ads, never search Google. Use the Ad Preview tool inside your account. Searching for your own ads hurts performance over time.

If your business runs Google Ads and you want to know exactly how you stack up against competitors in Toronto or the GTA, our PPC management team handles competitive intel as part of every account audit. Book a free audit and we’ll show you exactly which competitors are eating into your impression share.

FAQ: Google Ads check