How to Monitor a Competitor’s Email and Ad Campaigns

How do I monitor a competitor’s email and ad campaigns?

Subscribe to their newsletters with a dedicated inbox, then look up their paid ads in two free public archives — the Meta Ad Library for Facebook and Instagram, and the Google Ads Transparency Center for Search, Display, and YouTube. Follow each ad to its landing page, and log what you find on a schedule.

Every part of this is public and free. A competitor wants prospects to see their ads and open their emails, so the same windows that reach customers are open to you. This guide walks the exact steps, in order, and stays on the right side of the ethical line the whole way.

Why this matters for a small business

Paid ads and email are the two channels where a competitor tips their hand most. Ads cost real money, so a rival only keeps running the offers and hooks that convert — it’s the closest thing you’ll get to seeing their tested playbook. Email is where they nurture a lead into a sale, and it’s the channel with the highest return in marketing: roughly $36 back for every $1 spent, according to Litmus. If a competitor is quietly out-emailing you, that’s revenue moving in their direction.

Watching ads used to mean guesswork. That changed when regulators — driven largely by the EU’s Digital Services Act — pushed the platforms to open up. Google launched its Ads Transparency Center in March 2023 as a searchable hub of every ad run by verified advertisers across Search, YouTube, and Display, joining Meta’s long-running ad library. For the first time, a solo owner can see a rival’s entire live ad program without spending a cent.

For a service business with no marketing team, the goal isn’t a giant report. It’s a working answer to one question — what are they running, and is it working? — refreshed often enough to act on. This slots into the broader picture covered in our guide to what marketing your competitors are doing; here we go deep on the two channels that guide only skims.

How to monitor a competitor’s ads and email

Work through these steps once per competitor. The first pass takes an afternoon; after that, a weekly check is 15 minutes.

1. Set up a dedicated research inbox

Before you sign up for anything, create a free email address you’ll use only for competitor research — a separate Gmail or Outlook account, not your work inbox. This keeps their marketing out of your daily email and gives you one clean archive of every competitor sequence to compare side by side. Use a plausible personal name, not your company’s, so you receive the same emails a normal prospect would. This is the one bit of setup that makes everything after it manageable.

2. Subscribe to their emails and trigger their automations

From that inbox, sign up for each competitor’s newsletter, download a lead magnet, and — where it’s free or low-cost — start a trial or add something to a cart and abandon it. Each action triggers a different automated sequence: welcome series, nurture emails, abandoned-cart reminders, win-back offers. Over the next few weeks, watch the cadence (how often they send), the subject lines, the offers, and how they escalate a discount over time. Email is the only channel here you genuinely can’t see from the outside without opting in, so this step gets you intelligence rivals assume is private. Judge their email by its offers and cadence, not by metrics you can’t see — even public benchmarks are noisy, with average open rates now around 43% per MailerLite but inflated by Apple’s Mail Privacy Protection.

3. Search the Meta Ad Library

Open the Meta Ad Library, choose your country, set the category to “All ads,” and type the competitor’s page name. You’ll see every ad they’re currently running on Facebook and Instagram — the creative, the copy, the format, and, crucially, how long each has been live. No account is needed. Pay attention to ads that have run for months: a business rarely keeps paying for a loser, so long-running ads are your rival’s proven winners. Note the hook, the offer, and any audience clues in the copy.

4. Check the Google Ads Transparency Center

Do the same in the Google Ads Transparency Center. Search the advertiser’s name to see their Search, Display, and YouTube ads, filterable by format and date range. This is where you catch the campaigns Meta never shows — the text ads bidding on your shared keywords, the YouTube pre-rolls, the display banners following customers around. Between the two libraries you now have a near-complete map of what a competitor is willing to spend money to say, and where.

5. Follow every ad to its landing page

An ad is only half the story; the landing page is the other half. Click through each notable ad (or copy its destination URL) and study where it sends people. Is it the homepage, or a dedicated page built for that offer? What’s the headline, the price, the single call to action, the risk-reversal? Screenshot each page. Landing pages are where a competitor’s real offer and pricing live, and they change quietly — the Wayback Machine lets you compare today’s page against past versions to catch a price drop or a new guarantee you’d otherwise miss.

6. Log everything in one running sheet

Put it all in one place: a simple spreadsheet with a row per competitor and columns for ad hooks, current offer, ad channels, email cadence, top subject lines, and landing-page notes. Add a “what changed this week” column. A single snapshot is a curiosity; a log you update turns into a pattern you can act on — and a pattern is what tells you whether their new campaign is a one-off test or a strategic bet worth answering.

What you can and can’t see

Be clear-eyed about the limits so you don’t over-read the data:

• You can see live ad creative, copy, formats, and how long ads have run; every email a competitor sends to subscribers; and the landing pages behind their campaigns.
• You can’t see exact ad spend, targeting, or performance for commercial (non-political) advertisers — the libraries deliberately withhold those. Ad longevity is your proxy for what’s working, not a spend figure.
• You can’t assume an ad you see is their whole strategy. Both libraries show what’s live now, not the tests they’ve killed. Treat it as a snapshot, and revisit it.

The single most common mistake is doing this once and calling it done. Ad campaigns and email offers rotate constantly; last month’s audit is stale within weeks. The second mistake is copying instead of learning — a rival’s winning ad might flop for your audience. Study why it works, then find the angle you can own.

Is this legal and ethical?

Yes, when you stick to public information. Reading ads a company published in an archive Meta and Google built for exactly this purpose, and subscribing to a newsletter the way any prospect would, is fair game. As one practitioner puts it:

“The ad libraries aren’t a loophole — they’re a front door the platforms built on purpose. Reading what a competitor chose to publish is research, not spying.” — Dana Ruiz, small-business marketing consultant (illustrative)

The line you don’t cross is deception or intrusion: posing as a real buyer on a sales call to extract confidential pricing, misrepresenting yourself to get into a private community, or scraping a platform at scale in violation of its terms. Watching public ads and opting into public emails stays firmly on the ethical side. For the wider view on what’s fair to track across every channel, see our pillar guide on how to monitor competitors online.

Doing it free vs. automating the watch

Every step above is free, and for one competitor checked monthly, the manual method is genuinely fine. Bookmark the two ad libraries, keep your research inbox open, and block 30 minutes on your calendar. Pair it with the social side — our guide to tracking a competitor’s social media covers the posts that often preview an ad campaign before it goes paid.

The manual approach strains when you’re tracking three or more competitors across ads, email, social, and landing pages every week. The important change — a new offer in an email, a fresh ad that ran two weeks straight, a quietly relaunched landing page — is easy to miss between the tabs. That’s where tools help: Visualping watches a landing page for changes, and dedicated ad-intelligence tools go deeper on creative than either free library.

An all-in-one built for small teams collapses the watching into one view. Full disclosure: ScoutRival is our tool. It monitors competitors across their website and blog plus Instagram, Facebook, X, LinkedIn, and YouTube, then turns what changes into a Daily Brief — a short, plain-English list of what a rival did and what you might do about it. It also scores your SEO and checks how you show up in AI answers (running your prompts through ChatGPT and Gemini, on demand), then helps you write and publish a response to WordPress in one click. What it does not do is monitor reviews, run your ads, or schedule your posts — for scheduling you’d still use Buffer or Later, and it won’t read a competitor’s private email for you (nothing legitimate can — you subscribe yourself). For the fuller landscape, compare options in our roundup of the best competitor monitoring tools for small business, or browse more tactics in our marketing automation guides. Plans run Free, Starter $29, Pro $89, and Agency $149 a month.