But Is It Free? The One Negative Keyword Most Higher Ed Accounts Are Missing

Across six higher ed accounts that weren't blocking it, the word 'free' quietly ate more than $40,000 — nearly a fifth of one school's paid search budget — while logging conversions that made it look like it was working. Here's why 'free' is the single most valuable negative keyword in higher ed, and how to find the waste hiding in your search terms report.

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A note on the data: this is real Google Ads search terms data pulled from seven higher ed accounts — six that weren't blocking "free" and one that was. The numbers are exactly as they ran. Because this post is about a pattern rather than any single school, I haven't given them stand-in names; I've anonymized each one by type (large public, regional public, community college) and, where two share a type, labeled them A and B. The Pell and acceptance-rate figures come from the institutions' own public data. Everything else is untouched.

TLDR: If you're running paid search for a school, "free" is the one negative keyword you can't afford to skip. It can quietly eat close to a fifth of your budget — and it logs just enough conversions to look like it's working, which is exactly why no one catches it.


Is It Free?

If Google only allowed every account one negative keyword, I'd argue for every higher ed account to make theirs "free".

Every paid search account has a list of terms it never wants to show up for. That's your negative keyword list, and it's one of the least glamorous, most neglected parts of account management. No one is out here bragging about their negatives. Most don't report on them. Many don't even use them.

That neglect has a price.

Here's the thing about someone who types "free" into Google: whether they are searching for free online courses, free training, or to get their ged online for free, they are telling you, in the plainest possible language, that they are not looking to pay.

What does your institution offer for free? An application? Maybe? While most colleges wind up discounting their tuition, that discount seldom cuts the cost down to free.

It's not the reality that you have few free offerings that stops you from appearing in searches where people are looking for free. Negative keywords do.

So guess what happens when you're not using them? You spend money on searches from people looking for things that aren't going to cost them money.

Free courses. Free certificates. Free training. Free GEDs. Free laptops.

If you're not actively blocking that traffic out, you're paying for it.

Ok, but what's it costing me?

When it comes to paid search, wasted dollars here and there are an inevitability. You're not going to optimize that away. Given that, you might be wondering if I'm making a big deal out of nothing; you might be asking how much of your budget could really be going to these types of searches without anyone having noticed before. Let's talk about it.

How much are schools spending to show ads to people who explicitly want free? I went looking for that answer across six accounts - a mix of large and regional publics and community colleges, all not blocking out free - and mined their search terms reports for every query that contained "free". All in, those six schools had spent more than $40,000 chasing those queries.

School Type Cost % of Budget
Large Public (General) $11,145.94 18.9%
Large Public (Business School) $11,550.28 3.8%
Regional Public A $7,494.90 19.5%
Regional Public B $480.97 3.8%
Community College A $9,276.31 17.1%
Community College B $574.45 12.4%

19.5%. 18.9%. 17.1%. That's three of the six schools spending almost a fifth of their entire paid search budget on "free" searches. On the lower end, two schools put 3.8% of their budget to free. Some might say "oh, it's only 3.8%" - but it's 3.8% going to waste.

Notice, too, which schools were bleeding the most, because it's not a coincidence. The regional public at 19.5%? Their student population is estimated at roughly one third Pell grant recipients. The large public at 18.9% is one quarter Pell recipients. Both have acceptance rates over 80%. The 17.1% belongs to a community college. These are all schools that serve price-sensitive, often non-traditional, and credential-seeking students - exactly the type of audience more likely to add "free" as a search caveat in the first place.

The schools whose prospective student pool would make applicants most need the negative keyword were the ones who'd skipped it. The fix matters most precisely where it was ignored.

Look at what's being searched for. If someone is looking for a free GED, a free CNA certificate, or free English classes, they're not clicking on your ad, finding a decidedly not free tuition figure, and enrolling. And yet your school is still paying for that click - thousands of times over.

Maybe you're at a private school and thinking that this doesn't apply to you. But if you're not checking in on your search terms, how would you know for sure whether your school sits at the high end or the low one? You're risking an awful lot hoping you're on the low side.

How free slips through: your search terms report is a sea of free

Only two of the six schools saw more than 10% of their wasted spend go to a single search term - one school with 19.6% of their free spend going to "get my ged online for free" (and another 10.8% to "free high school diploma online no cost for adults"), while the other school saw 11.2% of their free spend go to "free online classes".

Instead, for most schools, "free" is death by a thousand cuts. Or in this case, thousands of different search terms.

School Type Total Search Terms Unique Search Terms With Spend % w/Spend
Large Public (General) 5,229 4,381 698 15.9%
Large Public (Business School) 6,321 3,372 553 16.4%
Regional Public A 3,241 2,057 355 17.3%
Regional Public B 1,069 842 80 9.5%
Community College A 17,303 9,326 1,630 17.5%
Community College B 270 235 36 15.3%

This death by a thousand search terms is also incredibly hard to spot when you're only glancing at your search terms report in Google Ads. Average each school's free spend across the terms that spent it and it works out to only $11.52 per. No one is looking through 60,000 lines in a report to optimize for $11.52 in misallocated spend.

And they don't just spend, they convert

There's another reason these search terms survive audit after audit. They don't just generate clicks, they log conversions. A total of 1,015 of them across the six schools, to be specific. Five of the six schools had a higher conversion rate for free terms than they did overall - and for two of the schools, the free CVR was double - or nearly double - what it was overall.

School Type Overall CVR Free CVR Difference
Large Public (General) 7.7% 10.1% +2.4
Large Public (Business School) 4.6% 6.7% +2.1
Regional Public A 12.7% 14.6% +1.9
Regional Public B 4.2% 8.7% +4.4
Community College A 11.0% 9.2% -1.8
Community College B 22.7% 40.9% +18.2

The vast majority of these conversions are a form fill - someone requesting more information. And the person requesting information about a free GED is not a prospective tuition-paying student; they're a dead-end lead who wanted something you don't provide. The conversion rate gives Google permission to keep serving your ad to that type of query. The conversion count gives everyone optimizing your account permission to leave the keyword alone. The numbers are telling a comforting lie, and no one is peeking behind the curtain to make sure that number isn't misleading.

That's the whole trap of "good enough" account management. As long as the top-line metrics look tolerable, the individual terms never get interrogated — and the ones quietly wasting the most are often the ones that look busiest.

About that tuition figure

Remember when I said "sees a tuition figure"? Turns out that part is pretty key.

On a lot of landing pages, the first thing a prospect sees is an RFI form so they can learn more. We call it best practice - making sure that the CTA for the next step is above the fold.

Let's walk through our prospect's journey thus far, coupled with how the remainder of it likely plays out.

  • They searched for something free.
  • They clicked your ad (presumably believing it matched up with their query for something free).
  • They land on your webpage.
  • They see a form to learn more.
  • They fill it out.
  • They hit submit.
  • At some point during your RFI commflow, they find out that the thing is, in fact, not free.

We've set up a system that facilitates this wasted spend cycle repeating itself. Fixing it means looking at paid search in a way you haven't been.

Free is a one-line fix

If this sounds like an unsolvable feature of paid search, it isn't. I also have data for a large public land-grant with a six-figure budget who spent exactly $0 on "free." No rounding here. Zero terms, zero clicks, zero dollars.

The difference between that school and the one hemorrhaging 19% of its budget isn't strategy, spend, or agency talent. It's one line in an account setting. Somebody, at some point, added "free" to the negative keyword list, and from then on it simply never cost them anything again.

(Me. It was me who did it).

Five minutes of work, permanently recovered budget.

"Free" has friends

Free can eat a lot of your budget, but it's a notably easy problem to solve for. But once you start reading search terms as statements of intent rather than just traffic, "free" is only the beginning.

In the same accounts, budget was also quietly draining into:

  • "jobs" and "careers" — people looking for employment, not a degree (over $4,500 at one school alone)
  • "salary" — researching what a role pays, nowhere near an application
  • "reddit" — hunting for unfiltered opinions, specifically trying to avoid your marketing
  • "meaning" and "definition" — someone who doesn't yet know what the thing is, let alone whether to enroll
  • [program] you don't offer — someone looking for a course, program, or degree your school doesn't even offer

None of these are as flagrant as "free," and each deserves its own judgment call. But the principle is identical: the search term is a window into where the person stands, and some windows look out on people who are never walking through your door.

So what

A negative keyword list is boring. No one wins awards for best use of negative keywording. You can't even make a dashboard with their KPIs because they literally do not have any.

And that's exactly why it gets skipped over - and exactly why, across six very real accounts, schools were spending close to 20% of their budget to advertise to people who had already announced they weren't looking to pay.

Your keywords might have fantastic KPIs. Your campaigns may be performing above industry benchmarks. But if words like "free" are still live in your account, you're not doing as well as you could be. You're wasting money, and in a time where budgets are shrinking, it's really not in your best interest to be doing that.

This is what I mean when I say you have to look behind the keywords: the most expensive mistakes aren't the ones that show up red on a report. They're the ones hiding in the green.

Want to know what's quietly eating your paid search budget? Let's talk.