PageSpeed Insights vs DebugBear: Which Website Speed (2025)

PageSpeed Insights vs DebugBear: Discover why PageSpeed Insights is the top website speed test for SEO and Core Web Vitals.

Tap this link to see the green PageSpeed tests proof wall and scroll down.

When comparing website speed testing tools like PageSpeed Insights and DebugBear, it’s clear that both provide you with unique insights.

Updated 22nd November 2025

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A genuine endorsement of our performance work

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One Job P/Day =FULL FOCUS

We only take on one website per day, because rushing speed work doesn’t cut it.

Your site gets our full focus, and every detail is tuned for performance.

This hands-on approach consistently alters your scores to green on PSI. It boosts Google rankings.

It helps you attract more traffic, more visibility, and ultimately, more business.

However, the good news is that once you know how to use Google PageSpeed Insights properly,

You’ll uncover exactly what’s dragging your site down and how to fix it for good.

Afterwards, look at the homepage and check out the full service that delivers these kinds of results shown on the “Live Results” page. (Updated Daily)

You pay upfront, and we do the work fast.
There are no hidden costs.

✅ Mobile-first
✅ Core Web Vitals fixed
✅  Google Green scores achieved
✅  Before & after proof
✅ 100% UK-based, WordPress-only service

✔️ GREEN SCORES, OR YOUR MONEY BACK✔️

“Can you guarantee I’ll get green PageSpeed Insights scores?”

Without a doubt, we guarantee a significant speed boost.

Most clients achieve scores of 90–100 on Google PageSpeed Insights.

If we fail to deliver green results across the core metrics, you’ll receive a full refund.

Our daily proof results reinforce these real scores.

But If?

Both have their place, but if you are serious about SEO, conversions, and long-term results, PageSpeed Insights is the preferred choice.

Here Is A Link To The DeBugBear Speed Test Below

Curious how DebugBear’s lab data stacks up?
Run a quick Core Web Vitals test using their own tool below.
🔗 Test your site with DebugBear

 

Comparison chart showing features across major website speed testing tools including PageSpeed Insights, GTmetrix, Pingdom, WebPageTest, Uptrends, SpeedVitals, KeyCDN, and Lighthouse
Feature comparison showing which website speed tools include metrics like Performance, Accessibility, Best Practices, SEO, and real-user data (CrUX)

PageSpeed Insights vs DebugBear Speed Test

Google’s PageSpeed Insights is the official performance testing tool created by Google.

It provides both lab data from Lighthouse simulations and field data from the Chrome User Experience Report.

This makes it uniquely valuable because it shows not just how your site performs in theory, but how real users actually experience it.

Even more importantly, PSI is directly linked to Google’s Core Web Vitals, which are confirmed ranking factors.

That means when you optimise for PSI, you are optimising for better search visibility.

Compare DebugBear: Great Detail, Limited Authority

DebugBear is an excellent diagnostic tool.

It offers highly detailed insights into metrics such as Time to First Byte (TTFB), JavaScript execution, and request waterfalls.

For developers and technical SEOs, DebugBear is a deep dive into bottlenecks that may not be obvious elsewhere.

Here’s the limitation: DebugBear is not an official Google tool.

You could score perfectly on DebugBear and still fail to meet the thresholds that PageSpeed Insights demands.

25/09/25 – DebugBear test for Green PageSpeed, 100% lab score, 135ms TTFB, 445ms FCP, 483ms LCP, CLS 0.03.
25/09/25 – DebugBear speed test: 100% score, sub-500ms paints.

Unlike many other website speed testing tools, DebugBear provides developers with more detailed data. PageSpeed Insights remains the standard for SEO.

We Compared PageSpeed Tests So You Don’t Have To

We’ve also compared PageSpeed Insights with other popular speed tools – check them out below:

Firstly, PageSpeed Insights: Mobile vs Desktop

Then

PageSpeed Insights vs DebugBear

Then

PageSpeed Insights vs Pingdom

Also

PageSpeed Insights vs WebPageTest

And

PageSpeed Insights vs SpeedVitals

Also

PageSpeed Insights vs Uptrends

As well as

PageSpeed Insights vs KeyCDN

Finally

PageSpeed Insights vs Lighthouse

Let’s break it down and find out why PageSpeed Insights is still the best option in 2025

Comparing PageSpeed Insights vs DebugBear

PageSpeed Insights Pros

  • Free to use, backed by Google.

  • Provides both lab and field data.

  • Aligned with Core Web Vitals and ranking factors.

  • Integrated with Google Search Console.

  • Globally recognised and trusted.

See Our GreenPageSpeed Proof

PageSpeed Insights Cons

  • Recommendations can feel generic.

  • Scores fluctuate based on conditions.

DebugBear Pros

  • Extremely detailed reporting.

  • Clear request waterfalls and page weight analysis.

  • Paid monitoring features for ongoing tracking.

DebugBear Cons

  • Paid tool with limited free usage.

  • Not tied directly to SEO outcomes.

  • Too complex for non-technical users.

22/11/25 - Mobile PageSpeed Insights result showing Green PageSpeed with full 100 scores.
22/11/25 – Mobile PSI test showing Green PageSpeed scoring 100 in all categories.

We host Green Page Speed on WPX — fast, secure, and independently tested in all our PageSpeed proofs.
 Try WPX Hosting→ (affiliate link)

PageSpeed Insights vs DebugBear: Why PSI Is the Preferred Benchmark

For business owners, agencies, and SEO people, it is a simple question: Which tool reflects the metrics that matter for rankings?

The answer is PageSpeed Insights.

When Google itself uses Core Web Vitals in its ranking algorithm, PSI becomes the gold standard.

Showing a client a PSI report instantly builds trust; they recognise the Google branding and know the score is objective.

By contrast, DebugBear often requires explanation, which can reduce its impact with non-technical audiences.

Real-World Testing vs Lab Perfect Scores

One common criticism of PageSpeed Insights is that scores fluctuate.

But that variability reflects the real world, where users connect from different devices, networks, and locations.

By showing that variation, PSI gives a realistic view of performance across scenarios.

DebugBear results are often more stable, but they don’t always represent actual user conditions.

For SEO, conversions, and UX, real-world performance is what matters most.

Integration With Google’s Ecosystem

PageSpeed Insights integrates directly with Google Search Console, allowing site owners to track Core Web Vitals over time.

This seamless integration enables improvements in PSI scores to be viewed alongside ranking data and traffic performance.

DebugBear has no such link with Google’s ecosystem, which makes it less actionable for SEO strategy.

The Smart Workflow

The best approach is to use both tools, but with different priorities.

Use PageSpeed Insights as your benchmark, as it indicates how Google evaluates your site.

Then use DebugBear for advanced diagnosis when you need extra technical insight to fix specific bottlenecks.

This way, you get the best of both worlds, but you never lose sight of the metric that matters most for SEO: PSI scores.

Why We Rely on PageSpeed Insights

At Green Page Speed, we document daily PSI results with a live proof wall showing over 100 consistent green scores.

This evidence demonstrates exactly how optimisations translate into top-level PSI performance.

It’s not theory — it’s live, repeatable proof.

And it’s what clients care about most: their website hitting green scores in PageSpeed Insights.

Final Verdict: PageSpeed Insights vs DebugBear

DebugBear is a strong supplementary tool, ideal for developers who want granular analysis.

Out of all the tools for testing website speed, DebugBear and PageSpeed Insights stand out the most.

But for long-term SEO trust, PSI is the go-to.

It’s free, trusted, and directly tied to how Google ranks your website.

Optimising for PSI means you are optimising for visibility, traffic, and conversions.

So while DebugBear has its place in a technical workflow, the preferred choice is clear.

Google PageSpeed Insights is the gold standard for website speed testing and SEO success.

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