PPC Spying: How to Analyse Your Competitors’ Google Ads

You search for your own service on Google and there they are again: a competitor’s ad sitting above yours, with a sharper offer and a headline you wish you had written. It is natural to want to know what else they are running, which keywords they bid on and how much they spend. That curiosity is what people mean by PPC spying.

The good news is that you can learn a great deal about competitors’ Google Ads without any dubious tools or tactics. Google and Meta now publish ad libraries, and your own account contains a report built for exactly this purpose. This guide shows how to analyse your competitors’ Google Ads using public and first-party data only, what each source can and cannot tell you, how to turn findings into better campaigns, and which lines you should not cross.

What PPC spying really means, and the ethical boundary

“Spying” makes it sound covert, but responsible competitor analysis is simply structured observation of information that is already public or that platforms share with advertisers. You are looking at the ads competitors show to everyone, the landing pages anyone can visit and the aggregate auction data Google provides to you as an advertiser.

It is worth being clear about what is off-limits, because some popular tips cross the line:

• Do not click competitors’ ads to drain their budget. Repeated deliberate clicks are invalid activity and waste money that is not yours. Google filters much of it, but trying is still unethical.
• Do not copy ad copy, images or landing pages. Use competitor work for inspiration on positioning, not as a template. Copying can infringe copyright and makes your brand look interchangeable.
• Do not misuse trademarks. Google’s trademarks policy lets trademark owners restrict the use of their marks in ad text. Bidding on a competitor’s brand name as a keyword is a separate question and carries its own reputational and legal considerations, so think carefully before doing it.
• Do not make claims about competitors you cannot support. Comparative claims must be accurate and fair; Singapore’s advertising code, administered by the Advertising Standards Authority of Singapore, covers comparisons, and false comparisons can also raise consumer protection issues.
• Do not try to access anything that is not public. No logging in to accounts you do not own, scraping against a site’s terms or impersonating customers to extract pricing.

Five legitimate sources of competitor ad intelligence

The table compares the main sources. Free platform tools should be your foundation; third-party tools are optional and best treated as estimates.

How to use the Google Ads Transparency Center

The Google Ads Transparency Center is a public, searchable library of ads served on Google, labelled to show whether each advertiser is verified. You can search by advertiser name or website and filter by region, format and date range. Google’s advertiser verification help page explains that verified advertisers are shown with their legal or trademark name and location, and that the entity paying for ads may also be named.

A practical routine:

1. Search for each competitor by brand name and by domain, because the advertiser name may be a parent or legal entity you do not recognise.
2. Set the region to Singapore and filter to Search ads first, since text ads are where most SME budgets go.
3. Note the recurring themes in headlines: price signals, promises they make, speed, location, credentials and calls to action.
4. Check the date range to see which messages have run for a long time. An ad that keeps appearing over months is more likely to be performing for them than one seen once, although you cannot know for sure.
5. Switch to Video and Display to see whether they run awareness campaigns or remarketing creative.

Remember the limits. The Transparency Center does not reveal which keywords trigger each ad, how much was spent, or whether an ad worked. Treat what you see as evidence of positioning, not of performance.

How to read auction insights in your own account

If you already run Search campaigns, auction insights is the most useful competitor data you have, because it is based on real auctions you took part in. Google reports metrics such as:

• Impression share: the share of impressions an advertiser received out of those it was eligible for.
• Overlap rate: how often another advertiser’s ad appeared in the same auctions as yours.
• Position above rate: how often their ad appeared above yours when both showed.
• Top of page rate and absolute top of page rate: how often an ad appeared at the top of results, or in the very first position.
• Outranking share: how often your ad ranked higher than theirs, or showed when theirs did not.

Read these together, by campaign and over time. A competitor with high overlap and a high position-above rate on your best campaign is your most direct rival there. A new name appearing suddenly may signal a new entrant or a promotion. A competitor whose impression share falls in December may be pausing for the holidays, which could be an opportunity if your team is open.

Auction insights shows outcomes, not causes. A rival may rank above you because of higher bids, better ad quality, more relevant landing pages or ad assets. Our guides to improving impression share and Google Ads bidding strategies cover the levers you control.

Checking Meta Ad Library and live search results

Many competitors who advertise on Google also run Facebook and Instagram ads. The Meta Ad Library lets anyone search active ads by page name or keyword and filter by country, platform and media type. It is useful for spotting offers, seasonal campaigns and creative angles that may also feature in their search ads and landing pages.

Manual checks on Google complete the picture. Search your main keywords on a phone and a desktop, ideally from different parts of Singapore, and note which competitors appear, what extensions they use and where their ads lead. Use an incognito window, and do not click competitor ads repeatedly; for looking at your own ads without affecting data, Google Ads offers a preview and diagnosis tool.

Visiting a competitor’s landing page normally, as any customer would, is fine and often the most revealing step. Look at their headline, proof points, form length, WhatsApp button and pricing transparency. Our guide to landing page design for Singapore provides a checklist to compare against.

Turning competitor insights into better campaigns

Analysis only matters if it changes what you do. Use a simple framework: for each competitor, record what they emphasise, what they leave out and where you are genuinely different. Then act on the gaps.

Sharpen your positioning

If every ad in your category says “affordable” and “professional”, those words no longer distinguish anyone. Lead with something specific and true about your business, such as same-day slots in the east, transparent package prices or bilingual staff. Our guide to writing effective ad copy covers how to turn that into headlines.

Fill keyword and offer gaps

Competitor ads and landing pages often hint at services or areas they target. Where you also serve those needs, test them; where competitors ignore a niche you handle well, that may be cheaper ground. Validate every idea with proper keyword research for SEM rather than simply copying their focus.

Use assets and landing pages to compete on quality

If rivals show sitelinks, callouts and call buttons and you do not, your ad looks smaller and less useful. Our guide to Google ad extensions explains which assets to add. Improving landing page relevance can also strengthen ad quality without simply raising bids.

Decide when not to compete

Sometimes the right response is to avoid a bidding war. If a larger rival dominates a generic term, you may get better value from more specific phrases, different hours, or stronger organic content. Adding irrelevant searches as negatives, covered in our guide to negative keywords in PPC, keeps your budget for searches you can win.

A monthly competitor review routine

This plan suits an SME with one or two people managing ads. Allow around two hours a month once set up.

1. Week 1 – Set up a competitor list (owner: business owner). Name three to five direct competitors and record their brand names, domains and Facebook pages in a shared sheet.
2. Week 1 – Capture a baseline (owner: marketing lead). Screenshot current ads from the Transparency Center and Meta Ad Library, note landing page offers, and export auction insights for your main campaigns.
3. Monthly – Review auction insights (owner: marketing lead). Compare overlap and position-above rates with last month and note new entrants or drop-outs.
4. Monthly – Refresh ad library checks (owner: marketing lead). Look for new offers, seasonal messages and creative changes, especially ahead of Chinese New Year, the Great Singapore Sale period, school holidays and year-end.
5. Monthly – Agree one or two actions (owner: business owner and marketing lead). For example, test a new headline angle, add an asset, adjust bids on a contested campaign or improve a landing page section.
6. Quarterly – Check results and reset (owner: business owner). Review whether the actions changed enquiries or cost per lead, and update the competitor list.

How AI can help with competitor ad analysis

AI tools can save time on the repetitive parts: summarising dozens of ad variations into themes, comparing competitors’ landing page messages, flagging when a competitor’s pages or offers change, and drafting test headlines based on gaps you identify. They are also useful for turning auction insights exports into a short written summary for the owner.

Keep the limits in view. AI cannot see competitors’ keywords, budgets or results any more than you can, and it may present guesses as facts if asked. It should never be used to write copy that imitates a competitor, or to make comparative claims you have not verified. A person should decide what to change in your account.

Marketing2u’s AI Competitor Agent is built around those boundaries: it monitors nominated competitors’ public pages, offers and ads through public transparency tools, labels any spend figures as estimates, and does not copy competitor content. On the account side, the AI Ads Agent reviews your own Google Ads data through a read-only connection and suggests changes for you to approve.

Common mistakes in PPC competitor analysis

• Assuming a competitor’s ad works because it exists. You cannot see their results; they may be losing money.
• Copying the market leader. Imitation makes you look like a cheaper version of someone else.
• Trusting third-party spend estimates as fact. Modelled figures can be far off, particularly in a small market.
• Watching competitors more than customers. Your search terms report and enquiry data matter more than a rival’s headline.
• Reacting to every change. Weekly bid wars over a single keyword rarely help either business.
• Crossing ethical lines. Click fraud, trademark misuse and misleading comparisons carry real risks.

Final thoughts on analysing competitors’ Google Ads

Good PPC spying is not about secrets. It is about systematically using the public and first-party data you already have: the Google Ads Transparency Center for creative and messaging, auction insights for who you are really competing with, the Meta Ad Library for offers and campaigns, and your own observation of live results and landing pages. Use what you learn to sharpen your own positioning rather than to imitate.

Start this month by listing three competitors and capturing a baseline. If you are planning your wider paid search approach, our overview of the main types of Google Ads is a helpful next read.

Frequently asked questions

Can I see which keywords my competitors bid on in Google Ads?

Not directly. Google does not publish competitors’ keywords, bids or budgets. Auction insights shows which advertisers compete in the same auctions as your keywords, and third-party tools offer modelled estimates, which you should treat as rough guides rather than facts.

Is it legal to bid on a competitor's brand name?

In many cases Google allows trademarked terms as keywords, but trademark owners can restrict their use in ad text, and local laws and disputes can still arise. Consider the reputational side as well, since such clicks often convert poorly. If in doubt, take legal advice before running brand-name campaigns.

Does the Google Ads Transparency Center show how much competitors spend?

No, for ordinary commercial ads it shows the ads, the advertiser’s verified name and location, and the date range they ran, but not spend or performance. Some regions and ad categories carry extra disclosures. It is best used to understand messaging and creative, not budgets.

How often should I review competitors' ads?

For most SMEs a monthly review is enough, with extra checks before major seasonal periods such as Chinese New Year or year-end sales. Focus on agreeing one or two concrete actions each time rather than reacting to every change you see.

Sources and further reading

• Google Ads Transparency Center
• Google Ads Help: Auction insights
• Meta Ad Library
• Google Advertising Policies Help: Advertiser verification
• Google Advertising Policies Help: Trademarks

Related guides

• SEO Competitor Analysis: How to Find and Learn From Your Real Online Competitors
• How To Improve Impression Share: 5 Ways For Better Results
• The Importance of Keyword Research in SEM
• What Is Ad Copy? 10 Tips To Boost Your Conversion
• What Are Google Ad Extensions And How To Use Them Effectively

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