How I Would Fix slow pages and weak Core Web Vitals in a Circle and ConvertKit founder landing page Using Launch Ready.

Opening

If a Circle and ConvertKit founder landing page feels slow, the symptom is usually not "Circle is broken." It is usually a stack of small delays: heavy scripts, too many embeds, unoptimized images, and third-party widgets blocking the first paint. The business impact is simple: weaker Core Web Vitals, lower conversion, more bounce, and paid traffic that lands on a page people do not wait for.

The first thing I would inspect is the actual render path in Chrome DevTools and PageSpeed Insights, then I would check what is loading before the hero section appears. In most cases, the real problem is not one giant bug. It is 5 to 10 small front-end decisions that compound into slow LCP, layout shift, and poor INP.

Triage in the First Hour

1. Open PageSpeed Insights for mobile and desktop.

• Capture LCP, CLS, INP, TTFB, and total blocking time.
• If mobile LCP is above 2.5s or CLS is above 0.1, treat it as a launch risk.

2. Run Lighthouse on the live page and a private preview URL.

• Compare scores before touching anything.
• Look for render-blocking scripts, unused CSS, oversized images, and third-party tags.

3. Inspect the waterfall in Chrome DevTools.

• Find what loads before the hero content.
• Check whether ConvertKit forms, Circle embeds, fonts, analytics, or chat widgets are blocking rendering.

4. Review the page source and build output.

• Identify all scripts in the head.
• Confirm whether assets are coming from multiple domains with no caching strategy.

5. Check Cloudflare settings if they exist.

• Verify caching rules, compression, HTTP/2 or HTTP/3 support, image optimization, and page rules.
• Confirm SSL mode is correct and there are no redirect loops.

6. Audit Circle and ConvertKit embeds separately.

• Test whether removing each embed improves LCP or INP.
• If one widget causes most of the delay, isolate it behind user interaction.

7. Check DNS and domain setup.

• Look for unnecessary redirects from root to www or vice versa.
• Confirm there are no broken subdomain routes or mixed-content warnings.

8. Review monitoring and uptime alerts.

• Make sure there is no hidden outage or intermittent timeout causing slow loads under real traffic.

curl -I https://yourdomain.com

Use this to confirm response headers, cache behavior, redirects, and whether Cloudflare is actually in front of the site.

Root Causes

| Likely cause | What it looks like | How I confirm it | |---|---|---| | Heavy third-party scripts | Slow first paint and poor INP | Remove scripts one by one and re-test Lighthouse | | Large hero media | High LCP from image or video | Inspect element size and network transfer size | | Too many fonts or font weights | Text appears late or shifts | Check font requests and font-display behavior | | Embed overload from Circle or ConvertKit | Main thread blocked by widgets | Compare performance with embeds disabled | | Bad caching or no CDN tuning | Repeated downloads on every visit | Inspect cache headers and Cloudflare status | | Redirect chain or SSL misconfig | Extra round trips before content loads | Trace redirects with curl and browser waterfall |

The most common root cause on founder landing pages is script bloat from marketing tools. Circle membership widgets, ConvertKit forms, analytics tags, pixels, calendars, chat tools, and social embeds often get added without a performance budget. One widget may be fine; five of them can destroy mobile performance.

Another common issue is a large hero section that looks polished but ships an oversized image or background video. That hurts both LCP and conversion because users wait longer to see the offer. If the offer cannot be seen fast on mobile data in the US or EU, you are paying for traffic that never gets to read it.

The Fix Plan

My fix plan is to reduce work before first paint, then harden delivery at the edge through Cloudflare. I would not start with redesigning the whole page unless there is a clear UX problem. I would first make the existing page faster and safer without changing conversion-critical copy.

1. Remove non-essential scripts from the head.

• Keep only what is needed for analytics you actually use.
• Defer everything else until after interaction or consent.

2. Replace heavy embeds with lighter patterns.

• Use a plain HTML form where possible instead of loading multiple widget layers.
• For Circle calls to action, link out to a dedicated join flow instead of embedding everything on the landing page.

3. Compress hero assets aggressively.

• Convert images to WebP or AVIF.
• Serve responsive sizes so mobile does not download desktop assets.

4. Simplify fonts.

• Use one family with two weights if possible.
• Preload only the critical font file if text rendering depends on it.

5. Move non-critical content below the fold.

• Testimonials sliders,

FAQs, social proof, embedded videos, and long newsletter sections should not block initial render.

6. Tune Cloudflare for static delivery.

• Enable caching where safe.
• Turn on Brotli compression.
• Use image optimization if available.
• Set proper cache-control headers for static assets.

7. Fix domain plumbing cleanly.

• Choose one canonical domain version.
• Set 301 redirects once only.
• Confirm SSL works end-to-end with no loops.

8. Lock down secrets and environment variables.

• Store API keys outside client-side code.
• Rotate any exposed tokens immediately if they were ever committed publicly.

9. Add uptime monitoring after deployment.

• Alert on downtime from at least two regions.
• Track homepage response time so regressions show up early.

10. Ship as a controlled change set.

• Make one performance pass first.
• Then test conversion elements second.
• Do not mix a redesign with infrastructure cleanup unless you have to.

Here is how I would sequence it in practice:

The trade-off here is clear: fewer scripts may reduce tracking depth slightly, but faster pages usually improve lead capture enough to offset that loss. For a founder landing page selling trust and clarity, speed matters more than decorative features.

Regression Tests Before Redeploy

Before shipping anything back live, I would run these checks:

1. Mobile Lighthouse score at least 85 for Performance on throttled test conditions. 2. LCP under 2.5 seconds on a mid-range mobile profile. 3. CLS under 0.1 after full load and after cookie banner display if present. 4. INP under 200 ms for key interactions like button clicks and form submits. 5. No broken form submissions in ConvertKit test mode. 6. No broken Circle links or membership CTA paths from primary buttons. 7. No mixed-content warnings in browser console. 8. No redirect loops between apex domain and www domain. 9. No console errors from removed scripts or lazy-loaded components failing silently. 10. Uptime monitor returns green from at least two locations after deploy.

I also want one manual exploratory pass on real devices:

• iPhone Safari over cellular
• Android Chrome over cellular
• Desktop Chrome with cache cleared

Acceptance criteria should be business-based too:

• Hero content visible within 2 seconds on normal broadband
• Form submission completes without reloading errors
• No visible layout jump when fonts load
• Page remains usable even if analytics fail

Prevention

The best prevention is a performance budget tied to code review and launch checks. If every new widget must justify its weight in milliseconds, slow pages stop creeping back in silently.

My guardrails would be:

• Keep third-party scripts on an allowlist only if they have measurable business value.
• Require any new script to document its effect on LCP or INP before merge.
• Review changes that touch head tags, embeds, fonts, images, redirects, cookies,

or consent banners with extra care because those are high-risk areas for conversion loss.

From a cyber security lens, this matters too:

• Limit who can change DNS records or Cloudflare settings.
• Store SPF/DKIM/DMARC records correctly so email trust does not degrade when sending ConvertKit campaigns.
• Use least privilege for all accounts connected to deployment or marketing tools.
• Keep secrets out of client code so tokens do not leak into public bundles or logs.

On UX:

• Make sure mobile users see one clear CTA fast enough to act on it
• Avoid carousels that hide your offer
• Keep forms short
• Provide clear loading states for submissions

On observability:

• Track p95 homepage load time
• Alert when LCP regresses by more than 20 percent week over week
• Keep error logging enabled so failed form posts do not disappear quietly

When to Use Launch Ready

Use Launch Ready when you need me to make the page production-safe fast without turning it into a long agency project. email deliverability, Cloudflare, SSL, deployment, secrets, monitoring, and handover checklist included.

This sprint fits best when:

• Your landing page exists but feels slow on mobile
• You are about to spend money on ads
• You need Circle plus ConvertKit wired correctly before launch
• You want DNS,

redirects, subdomains, caching, SPF/DKIM/DMARC, uptime monitoring, and deployment handled together instead of piecemeal

What I need from you before starting:

• Domain registrar access
• Cloudflare access if already set up
• Hosting or deployment access
• ConvertKit admin access
• Circle admin access
• Any brand assets used on the landing page
• A list of tools currently installed so I can cut dead weight quickly

If your current setup has weak Core Web Vitals plus uncertain email deliverability plus messy redirects, I would fix those together in one sprint rather than patching them across three weeks of guesswork.

References

1. roadmap.sh frontend performance best practices: https://roadmap.sh/frontend-performance-best-practices 2. roadmap.sh API security best practices: https://roadmap.sh/api-security-best-practices 3. roadmap.sh QA: https://roadmap.sh/qa 4. Cloudflare docs: https://developers.cloudflare.com/ 5. Google web.dev Core Web Vitals: https://web.dev/vitals/

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Take the next step

If this is a problem in your product right now, here is what to do next:

• [Use the free Cyprian tools](/tools) - estimate cost, score app risk, check launch readiness, or pick the right service sprint.

• [Book a discovery call](/contact) - I will tell you honestly whether you need a sprint or if you can DIY the next step.

*Written by Cyprian Tinashe Aarons - senior full-stack and AI engineer helping founders rescue, launch, automate, and scale AI-built products.*