Slow websites quietly lose customers every day
Every visitor arrives with intent.
A slow website gives them a reason to leave.
Faster loading, smoother interactions, and better visual stability create a better user experience that can improve engagement, support stronger search visibility, and help convert more visitors into customers.
That's why achieving green Core Web Vitals is more than a technical milestone—it's a business advantage.
What makes us different
Most agencies promise optimization.
We guarantee results.
Other agencies
- Best-effort optimization
- You pay regardless of the outcome
- A higher score, not guaranteed results
- Optimization at the expense of functionality
- Optimization report
EcDev Studio
- Guaranteed outcome
- Money back guarantee
- Green Core Web Vitals
- Performance without breaking your website
- Verified performance
What's included
Everything required to reach Google's green zone.
Our process
We analyze your website and determine whether it qualifies for our guarantee.
You receive a clear, fixed-price proposal with defined targets and timeline — no surprises.
Our engineers optimize your site’s performance, tackling every Core Web Vitals metric.
We verify the results against the agreed targets using real-world field data.
Your site meets the guaranteed Core Web Vitals targets — or you get your money back.
The guarantee
We hit your Core Web Vitals targets — or you pay nothing
If your website qualifies after our initial assessment, we guarantee the agreed Core Web Vitals targets.
If we don’t achieve them, you’ll receive a full refund.
No hidden conditions.
No fine print.
Case studies
| Website | Before | After | Results Achieved | ||||||
|---|---|---|---|---|---|---|---|---|---|
| RANK | LCP | INP | CLS | RANK | LCP | INP | CLS | ||
| sammamismortgage.comdesktop | 74% | 1.8s | 80ms | 0.20 | 100% | 1.7s | 49ms | 0 | Passed
|
| zoomride.commobile | 74% | 1.9s | 138ms | 0.26 | 96% | 1.6s | 80ms | 0.01 | Passed
|
| bankerlopez.comdesktop | 74% | 1.9s | 138ms | 0.26 | 96% | 1.6s | 80ms | 0.01 | Passed
|
- +8–12% organic sessions in 3 months
- −18% mobile bounces
- Layout doesn’t jump: +6–9% to cart conversion on mobile
- Layout doesn’t jump: +6–9% to cart conversion on mobile
Why we can guarantee it
WordPress engineering
Unlike general web agencies, we specialize in WordPress performance engineering.
One team, start to finish
The same team audits, optimizes, and verifies your website. No handoffs, no freelancers, no outsourcing.
9 years of WordPress expertise
Since 2017, we've specialized in solving WordPress performance and Core Web Vitals issues.
We assess before we guarantee
We analyze your website first and only guarantee targets we believe are realistically achievable.
Get AI Estimation
Enter your URL. We pull Google's real-user data and scan the page, then estimate the work. It usually takes a minute or two, longer for large sites.
Frequently asked questions
Yes — when your website qualifies after our initial assessment, we guarantee the agreed Core Web Vitals targets.
We don't take a "best effort" approach or charge you for endless optimization hours. We first determine what is realistically achievable, define the target, and provide a fixed-price proposal. If we don't achieve the agreed results, you receive a full refund.
We start with a free performance assessment of your website using Google's real-user data and a technical review of the site.
Our engineers identify the main performance bottlenecks, assess the WordPress setup, and determine whether the required improvements are realistically achievable. Only websites that meet our qualification criteria move forward with the guarantee. This means we take on the performance risk — not you.
No, our goal is to improve performance without compromising the experience your website was built to deliver.
We optimize the underlying code, assets, loading strategy, caching, and WordPress configuration rather than redesigning your website. Every optimization is evaluated against the existing functionality to keep the site working as intended while making it faster, more responsive, and more stable.
In many cases, yes. A complex WordPress setup doesn't automatically mean your website can't achieve green Core Web Vitals.
We assess plugin performance, JavaScript execution, image delivery, caching, hosting, and other technical factors to identify what's slowing the site down. Where possible, we optimize or remove performance bottlenecks without disrupting critical functionality.
And because we assess the website before accepting the project, we'll tell you honestly if your current setup has limitations that prevent us from guaranteeing the target.
The optimizations are built into your site, so they persist. What can undo them is new heavy plugins, unoptimized images, or third-party scripts added later. We hand over a short set of rules for your team, run post-launch verification, and offer ongoing monitoring if you'd prefer us to keep watch.
Ready to get Green Core Web Vitals?
Stop guessing whether optimization will work.
If your website qualifies, we'll guarantee the result.
Otherwise, we'll tell you honestly before you spend a dollar.