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I will audit your website performance
Heng L
About this gig
Slow website killing your conversions and SEO rankings? I'll find out why and fix it.
I'm a senior full-stack developer with 13+ years of experience. I work on production web platforms daily and know exactly where performance bottlenecks hide.
What you'll get:
- Comprehensive Lighthouse audit (Performance, Accessibility, SEO, Best Practices)
- Detailed PDF report with prioritized recommendations
- Core Web Vitals analysis (LCP, CLS, INP)
- Image optimization opportunities
- JavaScript and CSS bundle analysis
- Server response time investigation
- Caching strategy review
- Mobile vs desktop comparison
Standard and Premium packages also include hands-on implementation I will actually fix the issues, not just point them out.
Works with: WordPress, WooCommerce, Shopify, React, Next.js, Vue, plain HTML, custom stacks
Why choose me:
- 13+ years of real production experience
- Tech Lead at a major European company
- I explain findings in plain language, not just jargon
- Clear before/after metrics
- Based in the Netherlands (CET timezone)
Not sure which package fits? Send me your URL and I'll do a quick free check before you order.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Heng L
Heng L
Fullstack developer
- FromNetherlands
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, Chinese, Dutch
Full-stack developer with 13+ years of experience. Tech Lead at a European fleet management company, building React frontends and Node.js backends daily.
I specialize in:
→ WordPress/WooCommerce plugin development & customization
→ React components, dashboards & SPAs
→ Node.js REST APIs & backend services
→ Website performance optimization
I also run my own e-commerce projects, so I understand both the technical and business side. Based in the Netherlands (CET). Fast delivery, clean code, clear communication.
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Other Website Development Services I Offer
FAQ
What exactly do I get in the audit report?
A detailed PDF showing your current Lighthouse scores, Core Web Vitals (LCP, CLS, INP), prioritized list of issues, estimated impact of each fix, and step-by-step recommendations. You'll know exactly what to fix and in what order.
Will my Lighthouse score really go up?
Yes — Standard and Premium packages include actual implementation. I target 90+ scores on the Premium package. Some legacy sites with deep architectural issues may need more work, in which case I'll tell you upfront before starting.
Does this work for any platform?
Yes. I optimize WordPress, WooCommerce, Shopify, Next.js, React, Vue, and custom stacks. Just let me know your platform when you order.
Do you need access to my site?
For Basic (audit only), I just need your URL. For Standard and Premium (implementation), I'll need admin or developer access. We can discuss the safest setup before starting.
