Google Ads Scripts have been available for over a decade and most accounts still run none of them. That's not because scripts are hard — most of the useful ones are copy-paste with a couple of variables to change. It's because scripts sit outside the normal workflow of logging in, checking a dashboard, and reacting. They run while you're not looking, which is exactly the point, and exactly why most account managers never get around to setting them up.
The accounts that do run scripts catch budget overspend, broken landing pages, and search term drift the day it happens instead of the week after, when the damage is already baked into the month's numbers. Here are the seven that earn their place in every account, regardless of vertical or spend level.
1. Budget Pacing Alert
This script checks actual spend against a daily or monthly target and sends an alert — email or Slack webhook — when a campaign is pacing more than a set percentage over or under target. Set the threshold at 15-20% to avoid noise from normal daily variance.
This is the single highest-value script in this list. Overspend on a bad Smart Bidding day or underspend from an accidentally paused ad group both cost money, and both are usually invisible until someone happens to check.
2. Search Term N-Gram Auditor
Manually reviewing search terms report is one of the most valuable and most skipped tasks in PPC management. This script pulls the search terms report, breaks it into n-grams (single words, two-word phrases, three-word phrases), and flags any n-gram that's driven spend above a threshold without a conversion.
It doesn't replace human judgment on what to negate — it just does the sorting work that makes the human judgment fast instead of a forty-minute spreadsheet exercise every Monday.
3. Broken URL Checker
Runs through every active ad's final URL and checks the HTTP response code.
Landing pages die — a redeploy breaks a route, a promo page expires, a dev pushes to production without checking. This script catches it within hours instead of when a client asks why conversions dropped to zero three days ago.
A broken landing page burns budget at full velocity until someone notices. That's the entire case for this script.
4. Quality Score Tracker
Pulls Quality Score, and its three components, for every keyword on a schedule and logs it to a spreadsheet over time. Quality Score in the interface only shows you today's number — this builds the trend line that tells you whether a keyword is improving, decaying, or about to become unaffordable.
Why the trend matters more than the snapshot
A keyword sitting at QS 6 that's been climbing from 4 over three months is a different story than one that's been sliding from 8. The interface can't tell you that difference. A logged history can.
5. Impression Share Loss Reporter
Tracks impression share lost to budget and impression share lost to rank, separately, across campaigns. This is the fastest way to distinguish "I need more budget" from "my bids or Quality Score are the actual bottleneck" — two problems that look identical from the campaign summary view but require completely different fixes.
6. Anomaly Detector on Core Metrics
Compares yesterday's CPA, CTR, and conversion rate against a rolling 30-day average per campaign and flags anything outside a set standard deviation. This is the general-purpose smoke detector — it won't tell you exactly what broke, but it tells you something did, same day, instead of at the end-of-month review when it's too late to act on it.
7. Duplicate Keyword Finder
Runs across the account looking for the same keyword text active in multiple ad groups or campaigns, which creates internal auction competition that quietly inflates your own CPCs. This is a cleanup script more than a monitoring script — run it monthly, not daily.
Setting These Up Without a Developer
You don't need to write these from scratch. Google's own Ads Scripts gallery and several agency blogs publish working versions of all seven; the work is adapting variable names — spreadsheet URL, alert threshold, email address — to your account, then setting the run frequency in the Scripts interface. Budget an afternoon to deploy all seven properly, test the alerts fire correctly, and document what each one does for whoever inherits the account next.
Scripts don't replace strategy. They replace the parts of account management that were never strategy to begin with — the checking, the counting, the noticing. That's real time back, and it's time spent on the decisions that actually move a campaign instead of the busywork of finding out something needed a decision three days late.