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kennethlange.com website review
Visit site (opens in a new tab)Reviewed 11 November 202621 issues · 69 checks
This review found 21 issues worth fixing on kennethlange.com, 7 of them high impact, across 69 checks. The most urgent: use efficient cache lifetimes. 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
Use efficient cache lifetimes
1.5 s · 458 KiB17 files are served with short cache lifetimes, so returning visitors download them again (458 KiB).
Improve image delivery
750 ms · 231 KiB3 images could be 231 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 750 ms faster on a phone.
Render-blocking requests
900 ms7 files block the first paint until they finish downloading. Deferring or inlining them could save about 900 ms.
Reduce unused JavaScript
20 KiBAbout 20 KiB of JavaScript is downloaded but never used on this page.
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.
Minify CSS
4 KiB4 KiB could be saved by minifying CSS.
3 checks passed
Mobile performance score: 98
98/100Your mobile performance score is 98. That is in Google's “good” band (90 and up).
Main-thread work: 0.1 s
A phone's processor spends 0.1 s on main-thread work while loading, 28 ms of it running JavaScript. That is comfortably low.
Server response: 124 ms
124 msYour server sent the HTML in 124 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: 3.0 s
3.0 sVisually, the page fills in at 3.0 s (Speed Index), inside the 3.4 s “good” threshold.
Largest Contentful Paint: 2.1 s
2.1 sYour largest element renders in 2.1 s on a phone, inside Google's 2.5 s “good” threshold. The largest element is the image “AI-powered: What Tasks can be Performed by Generative AI?”.
First Contentful Paint: 1.1 s
1.1 sThe first text or image appears after 1.1 s, inside the 1.8 s “good” threshold.
Time to Interactive: 2.1 s
2.1 sThe page is fully interactive after 2.1 s.
Cumulative Layout Shift: 0.002
0.002The layout barely moves while loading (CLS 0.002, good is under 0.1).
Total Blocking Time: 0 ms
0 msScripts block the page for only 0 ms while loading. Good is under 200 ms.
Images and page weight
3 images in older formats
3 images (200 KiB) are JPEG, PNG or GIF. The same pictures as WebP or AVIF are usually much smaller at the same quality, and every current browser shows them.
1 image below the first screen load straight away
1 image further down the page (57 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.
About 0.1 g of CO₂ per visit
0.13 gBy the Sustainable Web Design model, a visit to your homepage emits about 0.13 g of CO₂e: 15.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
2 checks passed
Page weight: 470 KiB in 18 requests
470 KiBYour homepage downloads 470 KiB in 18 requests on a phone: images 343 KiB (4), scripts 58 KiB (6) and fonts 34 KiB (2). That is a lean page.
Images are sized for phones
No image is downloaded at more than three times the size it is drawn on a phone.
Accessibility
1 button without a name
1 button has no accessible name, so screen readers announce just “button”.
1 text element with low contrast
1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.
Links look like plain text
1 link inside paragraphs relies on colour alone to stand out.
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination (1 element)
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.
All page content should be contained by landmarks (1 element)
All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.
1 link without text
1 visible link has no text or label, so screen readers cannot say where it goes.
2 checks passed
Every image has alt text
All 4 images in the HTML carry an alt attribute.
44 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 50 WCAG 2.2 A/AA and best-practice rules on the phone render: 44 passed and 6 failed. 1 more need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
No meta description
No meta description, so Google writes its own snippet from whatever text it finds.
Title is short (13 characters)
Your title is only 13 characters: “Kenneth Lange”. 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 social preview image
No Open Graph image (also missing: og:title, og:description), so links shared on LinkedIn, Slack or Facebook show no preview picture.
1 link crawlers can't follow
1 link has no real href, so search engines can't follow it.
No X (Twitter) card tag
No twitter:card tag. X falls back to Open Graph, which is incomplete here.
33 internal links, 2 external
The homepage links to 33 pages on kennethlange.com and 2 external pages.
3 checks passed
One H1 headline
Your main headline reads: “Kenneth Lange”.
robots.txt in place
robots.txt is in place.
XML sitemap found
Your XML sitemap is reachable at https://kennethlange.com/sitemap.xml.
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://kennethlange.com/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.
Opted out of AI training for 2 crawlers
robots.txt blocks GPTBot and Google-Extended, which collect pages to train models. That's a legitimate choice and doesn't by itself stop the site appearing in AI answers, which the crawlers above handle.
2 checks passed
AI answer engines may read the site
Your robots.txt lets the crawlers behind ChatGPT search, Claude and Perplexity read the site and cite it in answers.
Text is in the HTML
Your server sends the page's text in the HTML (276 words), so crawlers that don't run JavaScript still read it.
Other pages
12 pages without a meta description
https://kennethlange.com/the-little-book-on-rest-services, https://kennethlange.com/subscribe, https://kennethlange.com/about, https://kennethlange.com/ai-powered-what-tasks-can-be-performed-by-generative-ai, https://kennethlange.com/author/kenneth-lange and https://kennethlange.com/defensibility-for-ai-startups and 6 others have no meta description, so Google writes the search snippet from whatever text it finds.
2 pages slow to respond
https://kennethlange.com/the-little-book-on-rest-services and https://kennethlange.com/subscribe took over 3 s to send their HTML from our server.
12 internal pages checked
We fetched 12 pages linked from your homepage and read each the way a search engine does.
6 checks passed
Linked pages load
All 12 pages we checked loaded without an error.
Canonical URLs point to themselves
No page we checked hands its ranking to a different URL.
Titles are unique
Every page we checked has its own title.
Every page has an H1
Each page we checked has a main headline.
No linked page is hidden from search
None of the pages we checked carries a noindex tag.
Every page has a title
All 12 pages that loaded have a <title>.
Best practices
3 checks passed
No console errors
No JavaScript errors were logged while the page loaded on a phone.
Tap targets are thumb-sized
23 of 26 tappable elements near the top are at least 24 px.
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 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.
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.
About 254 words of copy
The homepage carries about 254 words of visible text.
2 checks passed
4 calls to action
The homepage has 4 calls to action, for example “REST API Book”, “Subscribe” and “The Little Book on REST Services”.
2 short forms
2 short forms (2 fields at most) are right on the homepage, asking for an email.
Privacy and tracking
2 cookies set on arrival
2Opening the homepage sets 2 cookies (measured from a US location before any click).
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 other company contacted
Loading the homepage contacts 1 host run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.
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 kennethlange.com, because details like these could help someone attack a site. Every review keeps them private, whatever they found.
Upkeep, stack and company
Stack
- CMS
- WordPress
- Framework
- jQuery
- Hosting
- One.com A/S
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 21 issues on kennethlange.com, including 3 speed issues, 6 SEO issues and 4 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.