Why proving technical SEO ROI is so difficult

Jun 29, 2026 09:00 PM - 2 hours ago 70
Technical SEO shield

Six months ago, location was a halfway update that would’ve tanked your website. But it didn’t.

It didn’t because your squad fixed your canonicals, redirection issues, plagiarism issues, and JavaScript rendering 8 months earlier. It was the benignant of drudge activity a method technologist aliases developer sewage stuck pinch because the summons was past connected their list.

And you don’t person immoderate impervious of it, not really. Other than the acquisition that comes from years successful SEO and recognizing that your tract had each the hallmarks of sites deed by the update.

It could’ve trim your postulation successful half. It didn’t.

There’s nary parallel net timeline wherever you didn’t do the work, truthful there’s nary measurement to corroborate it. There’s nary record.

This is why method SEO ROI resists proof. It’s an conclusion problem pinch nary power group, and we support pretending it’s a reporting problem we tin instrumentality our measurement retired of.

The net doesn’t stop

We are successful 2 unfastened systems erstwhile we activity successful digital, astatine least: the net and the market. Three, if you count the maturity and expectations of net users. Four, if you count our ain website infrastructure. More than that, really, but we don’t person clip to database them all. 

The agelong and short of it is this: the oversea we aquatics successful is ever shifting, moving, growing, and shrinking. There’s nary measurement to pin down a single, coagulated “before” state, and there’s nary cleanable measurement to task each of those influences into “what would’ve happened if I didn’t do anything?” We effort to do it pinch things for illustration Bayesian forecasting, but that’s still an knowledgeable guess.

Technical activity mightiness person an contiguous effect connected visibility today. Make the aforesaid alteration six months later, and it mightiness not. That could solely beryllium because Google decided to displacement its crawl budget aliases alteration really it sounds websites. 

Cause and effect travel unstuck successful time. Google recrawls and reindexes connected its ain schedule, truthful immoderate effect lands acold from the alteration and is washed retired crossed a recrawl cycle, defeating the before-and-after pairing each cleanable trial needs.

Just for illustration SEO arsenic a whole, there’s a batch we can’t control. Trying to way each of the changes crossed the web that mightiness power our website would consequence successful galore grey hairs and sleepless nights.

Technical SEO adds different furniture because we seldom vessel successful isolation. It’s ne'er conscionable “here’s this azygous alteration to the website.” It’s “here are astir 30 fixes from 5 different teams going retired connected a Thursday, truthful if things collapse, we person group connected Friday who tin triage.” (Please don’t vessel connected Fridays.)

Much of the method activity is besides done to support our heads supra water: managing method debt, aliases doing the activity needed to enactment connected apical of updated regulations and caller releases of codebases aliases frameworks. Enhancements and improvements are tough. 

Technical activity is simply a batch much for illustration security aliases nationalist health. You only recognize really important it was erstwhile it stops working. What we’re doing pinch method SEO is often disaster prevention, not building caller cities. We can’t constitute an invoice for an earthquake that didn’t happen.

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The power group was ne'er there

Another reality of method changes, SEO-led aliases not, is that astir of them are sitewide and, by necessity, person to beryllium sitewide. There’s nary power group. Render pipeline, crawl budget, tract speed. It touches everything astatine once, truthful there’s nary untouched portion near to enactment arsenic the control.

Two examples to consider:

  • Sunsetting 301 redirects much than a twelvemonth old: The server stops reference each redirect statement connected each page load. The use is crawl and assets efficiency, which is invisible successful analytics.
  • A migration done right: The triumph information is “we didn’t suffer traffic.” A level line, possibly a flimsy uptick. Migration activity only becomes visible erstwhile it fails.

Your only comparison becomes the past, which existed nether different outer conditions. Time itself is now the trick. The only things to comparison are relative, complete time, and incremental, and the results displacement depending connected which metrics you usage to measurement occurrence and which assumptions you and your activity bring to the conversation.

When possible, we do want to tally a impervious of concept. SEO A/B testing, essentially. Pick a segment, make the alteration location and obscurity else. Measure and decide. But that isn’t ever possible, and it requires a different benignant of buy-in.

We’re besides astatine a constituent wherever LLMs make everything probabilistic. Every reply is personalized, and galore of the measurements we trust connected person go little deterministic.

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So support it relative

There are 2 levels of comparative here:

  • How to prioritize work.
  • How to measurement the impact.

How we prioritize the activity helps find the effect we want to make.

My attack to prioritizing method activity is to look astatine effect first. How overmuch of the website does this rumor affect, and really overmuch of that effect lands connected privilege sections aliases pages? After that, it’s modular scoping and grooming discussions led by the improvement teams.

But for me, effect is what matters.

Now, erstwhile it comes to measurement and reporting, overmuch of the SEO industry, myself included, is talking astir really we really measurement everything now, not conscionable method work. We’re successful a spot of a weird limbo because of everything LLMs person accelerated.

We don’t person the “what would’ve happened if…” for our ain websites, but we do person our competitors. Observing really competitors’ websites respond to world events, specified arsenic Google updates, is astir apt the closest we’ll get to answering that mobility successful method SEO work. It’s an ROI-by-proxy adjacent to stock of voice.

And the funding

Technical SEO is infrastructure. Insurance. If you’re having problem getting it done aliases getting it funded, look astatine your framing.

At its core, method SEO is security against the shocks of an unfastened system. Treat it that way. It’s not a gross driver.

Yes, it tin present meaningful improvements and thief that statement spell up and to the right, but the workhorse, the 80%, the mostly of method SEO, is keeping the motor running. The activity doesn’t committedness upside. It lowers the likelihood and the costs of getting tanked. The halfway update that didn’t descend you is the declare that paid out.

So do what I’ve recommended earlier and talk to finance. Learn really they quantify, value, and measure insurance, security, and infrastructure.

Start looking astatine your method SEO that way. Start talking astir it that way.

Technical SEO is maturation resilience your flywheel can’t move without, not an finance you can’t justify.

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