One of the Most Important Things in SEO That Nobody Talks About

So much has been written about SEO—content, backlinks, technical optimization, speed, structure, semantics…
But there’s one ingredient that makes all of this worth a lot more.
You won’t find it in most guides. It’s not taught in most courses. It’s not always visible in the work of SEO professionals.
And that’s exactly what makes it so important.

1. Why Running SEO Experiments Is Critical SEO isn’t an exact science—but it’s not random either. If you’re not testing changes in a structured way, you don’t really know what’s working. Experiments give you clarity. Not a hunch. Not a guess. Not a “feeling” something improved. It’s the difference between reacting—and leading.

1. Why You Must Document Your Experiments An undocumented experiment is like a dream you had last night. You might remember parts of it—but you can’t return to it, you can’t analyze it, and you definitely can’t replicate it.

Documentation lets you look back, spot patterns, repeat what worked, and avoid what didn’t.
More importantly—it builds you a personal knowledge base, based on your own work, not someone else’s blog post.

1. How Experimentation + Documentation Elevates Your SEO Process When you start documenting your experiments, you stop working harder—and start working smarter. You’re not afraid to try new things—because you know how to validate them. You’re not guessing—you’re testing. You’re not blindly following what “everyone says”—you’re building a process based on data.

And once you’ve built up all that knowledge and insight from real-world testing—
you’re in a completely different place as an SEO.
You’re not reliant on the latest guide, trend, or tip.
You’re generating your own knowledge.
You understand why your site is ranking—not just how.
And that’s what allows you to lead SEO processes with confidence, depth, and direction—no matter how the algorithm changes.

I’m Itzik Fayzak from fayzakseo.com
I’ve been building and optimizing websites for 17 years.
The tests, documentation, insights, and successes I’ve gathered over the years are what truly make me a professional SEO.

Want to learn more?
Follow me—my next post will break down how to build and document smart SEO experiments.