What Does an SEO Score Actually Measure?
Let’s clear the air: there’s no universal “SEO score.” No Google dashboard says, “Congrats, you’re a 75.” That number comes from tools—Ahrefs, SEMrush, Moz, PageSpeed Insights—each with its own algorithm, biases, and blind spots. Some weigh backlinks heavily. Others obsess over Core Web Vitals. A few over-punish thin content. So your 75 on Screaming Frog isn’t the same as a 75 on Lighthouse. That changes everything.
I find this overrated as a standalone metric. We treat it like a credit score, but it’s more like a weather report: useful in the moment, but don’t plan your retirement around it. These tools simulate aspects of Google’s algorithm—sometimes poorly. Google doesn’t “score” pages. It ranks them. Big difference.
How Scoring Tools Simulate Search Engine Behavior
Each platform reverse-engineers Google’s known ranking factors—over 200 of them—and assigns weights. Moz’s Domain Authority leans on link profiles. SEMrush’s Site Audit checks technical health: redirects, broken links, crawlability. PageSpeed Insights? That’s all about load performance, which matters more for mobile than desktop. A 75 from one is a 62 from another. And that’s exactly where people get misled.
(Which is why I keep a spreadsheet of tool discrepancies—yes, really.)
The Hidden Weighting Behind the Number
SEMrush might give you a 75 because your meta tags are optimized and you’ve fixed 90% of crawl errors. But if your content is generic and your bounce rate is 78%, Google won’t care. The tool doesn’t measure user behavior. It measures compliance. That’s like grading a restaurant on kitchen cleanliness while ignoring the taste of the food.
Why 75 Isn’t the Finish Line—It’s Just Past the Starting Blocks
You hit 75 and feel accomplished. Good. Celebrate. Then get back to work. Because here’s the thing: Google doesn’t rank websites with scores. It ranks pages that answer queries better than anyone else. A score of 75 might mean you’re technically sound, but if your competitor’s content is sharper, fresher, and more linked-to, they’ll win. We're far from it when we confuse hygiene with dominance.
Take two real examples: Site A has a 79 SEO score but ranks #6 for its target keyword. Site B? A 68. Yet it ranks #1. Why? Because Site B dominates featured snippets, earns backlinks from .edu domains, and updates content quarterly. The lower score hides superior real-world performance. That said, you still need that baseline—just don’t worship it.
Technical Perfection vs. Search Visibility
You can have flawless schema markup and still vanish from results. Why? Because Google rewards relevance and authority, not checkbox compliance. Think of a 75 like passing a driver’s test. You’re licensed. But are you the best driver on the road? That depends on skill, route knowledge, and adaptability—things no test captures.
When a 75 Is Actually a Red Flag
Some tools inflate scores to keep you subscribed. I’ve seen sites with “85+” scores that load in 8 seconds and have zero mobile optimization. The issue remains: if the tool doesn’t reflect real user experience, the number is theater. That’s why I trust manual audits more than dashboards. Pop open DevTools. Run a real Lighthouse test. Check your CLS, FID, LCP. A 75 with a 4.2-second load time? That’s a red flag in disguise.
What a 75 Hides: The Real Gaps in Your Strategy
You’ve fixed the easy stuff. Meta titles? Check. XML sitemap? Done. But what about semantic content clusters? Have you mapped topic hierarchies or are you just chasing keywords? A 75 often means you’ve nailed on-page basics but ignored content depth. And that’s where the battle is lost.
Google’s NLP (Natural Language Processing) now understands context, synonyms, and intent. If your page on “best running shoes” just lists products with affiliate links and thin descriptions, it doesn’t matter if your H1 is perfect. Competitor sites with buyer guides, injury prevention tips, and comparison tables will outrank you—even with lower SEO scores.
Because relevance isn’t just about headers. It’s about value.
Content Depth and Topic Authority
Let’s say you’re competing for “best CRM for small business.” Your page scores 76. But the top result? It’s 3,200 words. It compares 12 tools, cites pricing changes from 2023, includes video walkthroughs, and links to G2 and Trustpilot data. Your 1,200-word post with stock images? It’s not losing because of SEO score. It’s losing because it’s shallow. That changes everything.
User Behavior Signals the Score Ignores
Bounce rate, time on page, scroll depth—none of these appear in your SEO score. Yet Google tracks them. If users click your result and leave in 12 seconds, that’s a signal. A 75 doesn’t reflect that. But Google does. Hence, you can have high scores and low rankings.
75 vs. 90: What’s Really Different?
Is the jump from 75 to 90 worth it? Sometimes. But not always. A 90 usually means you’ve crushed technical SEO: no crawl errors, perfect redirects, optimized images, flawless structured data. But if your content hasn’t improved, that extra 15 points won’t move rankings. As a result: prioritize based on impact, not vanity metrics.
One client spent six weeks chasing 90. Fixed every tiny warning in Screaming Frog. Their traffic? Up 3%. Another spent two weeks rewriting top pages. Score dropped to 72 due to image bloat. Traffic jumped 34%. Weird, right? But it makes sense. Google values content upgrades more than technical tweaks—at scale.
The Diminishing Returns of Chasing Perfection
Going from 50 to 70? Huge gains. From 70 to 80? Still valuable. But 85 to 95? You’re spending 40 hours for 2% improvement. That’s inefficient. Focus on ROI, not digits. Because if your average position is #4.3, fixing Core Web Vitals might help. But adding a comparison table might help more.
When Higher Scores Actually Matter
Enterprise sites, news publishers, e-commerce—yes, they need 90+. Why? Scale. A single crawl error on a 50,000-page site can kill thousands of impressions. For them, perfection is operational necessity. For a 20-page service site? Not so much. The context changes everything.
Frequently Asked Questions
Does Google Use SEO Scores Like SEMrush or Ahrefs?
No. Google doesn’t have a public score. It uses live data: crawl stats, indexation rates, user engagement, backlink quality. Tools mimic parts of it, but they’re approximations. Relying on them like gospel is risky. Honestly, it is unclear how much weight Google gives to certain factors—they keep that secret for a reason.
Can I Rank Well With a Score Below 75?
Absolutely. I’ve seen sites with 60s ranking #1. How? Killer content, strong backlinks, and superior UX. The score didn’t reflect their authority. Google sees signals tools miss. So yes—you can outrank a “better-optimized” site if you understand user intent better.
Should I Aim for 100?
No. Because 100 is impossible. Even Google.com wouldn’t score 100 on every tool. There’s always something flagged—a missing alt text, a slightly slow script. And that’s fine. Perfection is a myth. Aim for 80-85 as a practical ceiling, then shift focus to content and links.
The Bottom Line
A 75 SEO score is decent. But calling it “good” is like calling a D+ in math “passing.” It keeps you in the game, but you’re not winning. The real question isn’t the score—it’s whether your pages are outperforming competitors in relevance, depth, and trust. Because that’s what Google rewards. Not checkmarks.
We need to stop treating SEO tools like oracles. They’re flashlights, not maps. A 75 might mean you’ve fixed the glaring issues. But if your content’s stale, your links weak, and your UX clunky, you’ll still lose. And that’s exactly where the smart players pull ahead—by looking past the number.
My take? Use the score to triage technical debt. Then forget it. Invest in research, storytelling, and real value. Suffice to say, no one ever ranked #1 because their SEMrush score was “pretty good.” SEO scores are diagnostic tools, not performance indicators. Treat them that way, and you’ll stop chasing points and start gaining traffic.