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jonathanoh.xyz website review
Visit site (opens in a new tab)Reviewed 8 November 202615 issues · 47 checks
This review found 15 issues worth fixing on jonathanoh.xyz, 3 of them high impact, across 47 checks. The most urgent: no call to action on the first screen. Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.
- Homepage
- Phone render
- Links and pages
- Google PageSpeed
Google PageSpeed Insights (opens in a new tab), mobile
Site score
83BClosest competitors among reviewed websites
Compare side by sideOne score from every part of this review. How it works
How it loaded on a phone
0.4 s
0.8 s
1.1 s
1.5 s
1.9 s
2.3 s
2.6 s
3.0 s
Speed
Render-blocking requests
150 ms1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 150 ms.
1 long task on the main thread
1 long task block the main thread while loading, the longest for 62 ms. During a long task the page ignores taps.
Reduce unused JavaScript
52 KiBAbout 52 KiB of JavaScript is downloaded but never used on this page.
Legacy JavaScript
14 KiBPolyfills for old browsers add 14 KiB JavaScript that modern phones do not need.
Chained critical requests
Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.
3 checks passed
Mobile performance score: 100
100/100Your mobile performance score is 100. That is in Google's “good” band (90 and up).
Main-thread work: 0.3 s
A phone's processor spends 0.3 s on main-thread work while loading, 171 ms of it running JavaScript. That is comfortably low.
Server response: 1 ms
1 msYour server sent the HTML in 1 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Not enough real-visitor data yet
Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.
6 checks passed
Speed Index: 2.2 s
2.2 sVisually, the page fills in at 2.2 s (Speed Index), inside the 3.4 s “good” threshold.
Time to Interactive: 2.2 s
2.2 sThe page is fully interactive after 2.2 s.
Cumulative Layout Shift: 0
0The layout barely moves while loading (CLS 0, good is under 0.1).
First Contentful Paint: 0.8 s
0.8 sThe first text or image appears after 0.8 s, inside the 1.8 s “good” threshold.
Largest Contentful Paint: 0.8 s
0.8 sYour largest element renders in 0.8 s on a phone, inside Google's 2.5 s “good” threshold. The largest element is the text “Currently exploring what's next—mostly in Claude Code and C…”.
Total Blocking Time: 12 ms
12 msScripts block the page for only 12 ms while loading. Good is under 200 ms.
Images and page weight
About 0.08 g of CO₂ per visit
0.08 gBy the Sustainable Web Design model, a visit to your homepage emits about 0.08 g of CO₂e: 10.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
4 checks passed
Page weight: 301 KiB in 14 requests
301 KiBYour homepage downloads 301 KiB in 14 requests on a phone: fonts 146 KiB (3), scripts 141 KiB (8) and HTML 5 KiB (1). That is a lean page.
Images use modern formats
Every sizeable image is WebP, AVIF or SVG.
Images load when needed
Images below the first screen wait until the visitor scrolls to them.
Images are sized for phones
No image is downloaded at more than three times the size it is drawn on a phone.
Accessibility
2 checks passed
Every image has alt text
All 1 image in the HTML carry an alt attribute.
35 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 35 WCAG 2.2 A/AA and best-practice rules on the phone render: 35 passed and 0 failed. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
Title is short (11 characters)
Your title is only 11 characters: “Jonathan Oh”. Between 30 and 65 characters leaves room to say what you do and for whom.
No structured data
No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.
No canonical URL
No canonical URL, so duplicate versions of the homepage (with or without www, with tracking parameters) can split ranking signals.
No XML sitemap
No XML sitemap at https://www.jonathanoh.xyz/sitemap.xml, so Google discovers your pages only by following links.
No robots.txt
There is no robots.txt at jonathanoh.xyz/robots.txt, the first file search crawlers ask for.
Only 0 internal links
The homepage links to only 0 pages on your own site, so visitors and crawlers find few routes into the rest of it.
One H1 headline
Your <h1> is empty.
2 checks passed
Meta description: 86 characters
Your meta description is 86 characters: “Husband, father, and entrepreneur based in Los Angeles. Building and scaling startups.”.
Open Graph tags complete
Open Graph tags are complete, so shared links show a title, description and image.
AI search readiness
No Organization structured data
There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.
No llms.txt
There is no https://www.jonathanoh.xyz/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.
1 checks passed
AI answer engines may read the site
There is no robots.txt, so nothing stops the crawlers behind ChatGPT search, Claude and Perplexity from reading the site and cite it in answers.
Best practices
6 small tap targets
6 of 7 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.
2 checks passed
No console errors
No JavaScript errors were logged while the page loaded on a phone.
Mobile viewport set
The page declares a mobile viewport.
Content and conversion
No call to action on the first screen
On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.
No calls to action
We found no call-to-action buttons or links (such as “Book a demo” or “Get a quote”) anywhere on the homepage.
No social proof
No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.
No analytics detected
No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.
No direct contact details
No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.
Only about 105 words
The homepage has only about 105 words of visible text; thin pages give Google and first-time buyers little to go on.
No form on the homepage
There is no form on the homepage, so every lead has to click through to another page first.
No risk reducer
No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.
Privacy and tracking
No consent tool detected
No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.
1 checks passed
No known trackers before consent
No known advertising or analytics trackers load before a visitor clicks anything (measured from a US location before any click).
Security, domain, email and software versions
The security, domain and email checks, software and plugin versions, and any app with a known security problem are visible only to people at jonathanoh.xyz, because details like these could help someone attack a site. Every review keeps them private, whatever they found.
Upkeep, stack and company
Stack
- Framework
- Next.js
- Hosting
- Vercel
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 15 issues on jonathanoh.xyz, including 7 SEO issues and 6 conversion gaps. That is the website alone. The full Growth Playbook pairs these findings with what your customers say in public reviews and communities and what your closest competitors do better, then turns everything into at least 20 prioritised ideas, each with the evidence behind it, a step-by-step playbook, a metric and an owner.
- 28 research agents read your site, reviews, competitors, communities and public filings
- Customer review mining (G2, Capterra, Trustpilot and more) and voice-of-pain analysis in your buyers’ own words
- Competitor intelligence with battlecards for your closest rivals
- Ideal customer profile, buyer segments and buying-stage funnel
- Ranked channels, outreach sequences and content angles
- Live Reddit threads where buyers ask for what you sell, with draft replies
- Earned media and PR openings
- At least 20 ideas with evidence, a step-by-step playbook, metric, owner, effort and impact, grouped into this week, this quarter, big bets and wildcards, plus a 30/60/90-day roadmap
- PDF, Markdown, CSV, Notion and Linear exports, and a shareable page your team can track progress on
- Refresh the playbook later to see what changed
14-day money-back guarantee: not happy for any reason, email us within 14 days and we refund in full.