Website review, no card needed
nk.com.br website review
Visit site (opens in a new tab)Reviewed 28 October 202648 issues · 90 checks
This review found 48 issues worth fixing on nk.com.br, 17 of them high impact, across 90 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
57FClosest competitors among reviewed websites
Compare side by sideShow as table
| Date | Real-visitor load time (LCP) |
|---|---|
| May 9, 2026 | 4.8 s |
| May 16, 2026 | 5.0 s |
| May 23, 2026 | 5.0 s |
| May 30, 2026 | 5.0 s |
| Jun 6, 2026 | 4.7 s |
| Jun 13, 2026 | 4.5 s |
| Jun 20, 2026 | 4.1 s |
| Jun 27, 2026 | 3.6 s |
| Jul 4, 2026 | 3.5 s |
| Jul 11, 2026 | 3.5 s |
| Jul 18, 2026 | 3.4 s |
| Jul 25, 2026 | 3.6 s |
| Aug 1, 2026 | 3.7 s |
| Aug 8, 2026 | 3.6 s |
| Aug 15, 2026 | 3.6 s |
| Aug 22, 2026 | 3.9 s |
| Aug 29, 2026 | 4.0 s |
| Sep 5, 2026 | 4.2 s |
| Sep 12, 2026 | 4.2 s |
| Sep 19, 2026 | 4.2 s |
| Sep 26, 2026 | 4.2 s |
| Oct 3, 2026 | 4.2 s |
| Oct 10, 2026 | 4.2 s |
| Oct 17, 2026 | 4.3 s |
| Oct 24, 2026 | 4.3 s |
Show as table
| Date | Real-visitor tap response (INP) |
|---|---|
| May 9, 2026 | 265 ms |
| May 16, 2026 | 274 ms |
| May 23, 2026 | 270 ms |
| May 30, 2026 | 262 ms |
| Jun 6, 2026 | 244 ms |
| Jun 13, 2026 | 231 ms |
| Jun 20, 2026 | 240 ms |
| Jun 27, 2026 | 243 ms |
| Jul 4, 2026 | 243 ms |
| Jul 11, 2026 | 252 ms |
| Jul 18, 2026 | 241 ms |
| Jul 25, 2026 | 235 ms |
| Aug 1, 2026 | 244 ms |
| Aug 8, 2026 | 231 ms |
| Aug 15, 2026 | 249 ms |
| Aug 22, 2026 | 290 ms |
| Aug 29, 2026 | 317 ms |
| Sep 5, 2026 | 330 ms |
| Sep 12, 2026 | 337 ms |
| Sep 19, 2026 | 328 ms |
| Sep 26, 2026 | 314 ms |
| Oct 3, 2026 | 314 ms |
| Oct 10, 2026 | 322 ms |
| Oct 17, 2026 | 330 ms |
| Oct 24, 2026 | 339 ms |
Chrome UX Report (opens in a new tab): real Chrome visitors over rolling 28-day periods.
One score from every part of this review. How it works
Speed
Use efficient cache lifetimes
2.6 s · 817 KiB42 files are served with short cache lifetimes, so returning visitors download them again (817 KiB).
Reduce unused JavaScript
2.1 s · 653 KiBAbout 653 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 2.1 s faster on a phone.
Mobile performance score: 28
28/100Your mobile performance score is 28 (desktop: 61). Under 50 is Google's “poor” band: many phone visitors leave before the page is usable.
Main-thread work: 4.8 s
A phone's processor spends 4.8 s on main-thread work while loading, 2.6 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.
8 third-party services on the page
8 third-party services load with your homepage (Google Tag Manager, Facebook and JSDelivr CDN and others), adding 1.3 MB and 1.8 s of main-thread time.
Improve image delivery
950 ms · 173 KiB3 images could be 173 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 950 ms faster on a phone.
Google Tag Manager adds 828 ms
828 msGoogle Tag Manager costs a phone 828 ms of main-thread work and 552 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
Render-blocking requests
500 ms3 files block the first paint until they finish downloading. Deferring or inlining them could save about 500 ms.
15 long tasks on the main thread
15 long tasks block the main thread while loading, the longest for 379 ms. During a long task the page ignores taps.
Reduce unused CSS
300 ms · 59 KiBAbout 59 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 300 ms faster on a phone.
Facebook adds 330 ms
330 msFacebook costs a phone 330 ms of main-thread work and 280 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.
Minify JavaScript
300 ms · 33 KiB33 KiB could be saved by minifying JavaScript.
1,645 HTML elements
The page has 1,645 HTML elements. Above 1,500, rendering and every interaction get slower on phones.
Legacy JavaScript
21 KiBPolyfills for old browsers add 21 KiB JavaScript that modern phones do not need.
Phones get a much slower page than desktops
Desktop scores 61 but mobile only 28. A gap that wide usually means heavy scripts and images that hit phones hardest.
Minify CSS
8 KiB8 KiB could be saved by minifying CSS.
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.
Forced reflow
Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.
1 checks passed
Server response: 5 ms
5 msYour server sent the HTML in 5 ms, well inside Google's 600 ms guideline.
Core Web Vitals
Fails Core Web Vitals for real visitors
Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.
Largest Contentful Paint: 14.9 s
14.9 sYour largest element takes 14.9 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Confira as novidades: chegada de novidades de nk artesania.”.
Time to Interactive: 19.4 s
19.4 sThe page becomes fully interactive after 19.4 s. Good is under 3.8 s.
Speed Index: 8.6 s
8.6 sVisually, the page fills in at 8.6 s (Speed Index). Good is under 3.4 s.
First Contentful Paint: 4.2 s
4.2 sThe first text or image appears after 4.2 s on a phone. Good is under 1.8 s.
Total Blocking Time: 1.2 s
1.2 sScripts block taps and scrolling for 1.2 s in total while the page loads. Good is under 200 ms.
Real-user LCP: 2.8 s
2.8 sReal visitors wait 2.8 s for the largest content to appear (75th percentile). Good is under 2.5 s.
Real-user INP: 285 ms
285 msReal visitors wait 285 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.
Real-user CLS: 0.15
0.15For real visitors the layout shifts by 0.15 (75th percentile). Good is under 0.1.
Tap response (INP) got 24% slower for real visitors
+24%Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 265 ms to 339 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).
Real-user TTFB: 996 ms
996 msReal visitors wait 996 ms for your server to start answering (75th percentile). Good is under 800 ms.
Cumulative Layout Shift: 0.169
0.169The layout shifts by 0.169 while loading, so content jumps under the reader's thumb. Good is under 0.1.
2 checks passed
Real-user FCP: 1.8 s
1.8 sReal visitors see the first content after 1.8 s (75th percentile). Good is under 1.8 s.
Largest content (LCP) got 12% faster for real visitors
-12%Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 4.8 s to 4.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).
Images and page weight
Page weight: 2.4 MB in 136 requests
2.4 MBYour homepage downloads 2.4 MB in 136 requests on a phone: scripts 1.6 MB (47), images 447 KiB (28) and fonts 140 KiB (5). Under 2 MB keeps phones on slow connections fast.
About 0.7 g of CO₂ per visit
0.67 gBy the Sustainable Web Design model, a visit to your homepage emits about 0.67 g of CO₂e: 80.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
3 checks passed
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 buttons without a name
2 buttons have no accessible name, so screen readers announce just “button”.
Elements must only use permitted ARIA attributes (6 elements)
Elements must only use permitted ARIA attributes: 6 elements on the page fail this check, rated serious by axe-core.
5 text elements with low contrast
5 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.
1 tap target too small
1 tap target is too small or too close together to hit reliably with a finger.
All page content should be contained by landmarks (259 elements)
All page content should be contained by landmarks: 259 elements on the page fail this check, rated moderate by axe-core.
211 links without text
211 visible links have no text or label, so screen readers cannot say where they go.
4 form fields without a label
4 form fields have no label, so screen readers announce an empty box and autofill guesses.
2 checks passed
Every image has alt text
All 49 images in the HTML carry an alt attribute.
37 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 43 WCAG 2.2 A/AA and best-practice rules on the phone render: 37 passed and 6 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
No H1 headline
There is no <h1>, so neither visitors nor Google get a clear main headline.
Title is short (7 characters)
Your title is only 7 characters: “nk | nk”. 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.
Meta description is short (67 characters)
Your meta description is only 67 characters: “Encontre as últimas Tendências da Moda Feminina na NK, acesse! | nk”. 70 to 160 characters is enough to sell the click.
No canonical URL
No canonical URL, so duplicate versions of the homepage (with or without www, with tracking parameters) can split ranking signals.
No X (Twitter) card tag
No twitter:card tag. X falls back to Open Graph, which is set, so this is minor.
104 internal links, 1 external
The homepage links to 104 pages on nk.com.br and 1 external page.
3 checks passed
Open Graph tags complete
Open Graph tags are complete, so shared links show a title, description and image.
robots.txt in place
robots.txt is in place and points crawlers to your sitemap.
XML sitemap found
Your XML sitemap is reachable at https://www.nk.com.br/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://www.nk.com.br/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.
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 (425 words), so crawlers that don't run JavaScript still read it.
Other pages
15 pages share a title
/, https://www.nk.com.br/nk-collections, https://www.nk.com.br/aluf, https://www.nk.com.br/on, https://www.nk.com.br/jacquemus and https://www.nk.com.br/jil-sander and 9 others all use the title “nk | nk”. Search engines can't tell which page to show for a search, so each competes with the others.
15 pages share a meta description
https://www.nk.com.br/nk-collections, https://www.nk.com.br/aluf, https://www.nk.com.br/on, https://www.nk.com.br/jacquemus, https://www.nk.com.br/jil-sander and https://www.nk.com.br/adidas and 9 others use the same meta description. A description written for each page earns more clicks.
1 page without an H1
https://www.nk.com.br/s has no <h1> headline, so visitors and search engines get no clear main topic.
1 page with very little text
https://www.nk.com.br/s has under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.
6 pages slow to respond
https://www.nk.com.br/nk-collections, https://www.nk.com.br/aluf, https://www.nk.com.br/jacquemus, https://www.nk.com.br/adidas, https://www.nk.com.br/patou and https://www.nk.com.br/courreges took over 3 s to send their HTML from our server.
15 internal pages checked
We fetched 15 pages linked from your homepage (of 37 found) and read each the way a search engine does.
5 checks passed
Linked pages load
All 15 pages we checked loaded without an error.
Canonical URLs point to themselves
No page we checked hands its ranking to a different URL.
Every page has a meta description
All 15 pages that loaded have a meta description.
No linked page is hidden from search
None of the pages we checked carries a noindex tag.
Every page has a title
All 15 pages that loaded have a <title>.
Best practices
7 broken images
7 images failed to load on a phone, for example https://www.facebook.com/tr?id=710455638100827&ev=PageView&noscript=1.
169 small tap targets
169 of 387 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.
1 third-party cookie
1 third-party cookie is set on load; browsers are restricting these, so whatever relies on them breaks.
6 JavaScript errors while loading
6 errors were logged to the browser console while the page loaded, for example “Failed to load resource: the server responded with a status of 404 ()”.
Browser-reported issues
Chrome logged issues while loading the page (“Cookie”).
1 checks passed
Mobile viewport set
The page declares a mobile viewport.
Content and conversion
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 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 566 words of copy
The homepage carries about 566 words of visible text.
4 checks passed
Clear next step on the first screen
On a phone, the first screen shows a clear next step: “shop nk” and “shop curadoria”.
1 call to action
The homepage has 1 call to action, for example “shop nk archive”.
1 short form
A short form (1 field at most) is right on the homepage.
Analytics in place
Analytics detected: Google Tag Manager, Meta Pixel and Microsoft Clarity.
Privacy and tracking
7 trackers load before any consent
7Before a visitor clicks anything, the page loads Criteo, Google Ads, Google Analytics, Google Tag Manager and Meta Pixel and 2 mores (measured from a US location before any click). A consent tool (OneTrust) is installed; check it blocks these until visitors agree where the law requires it.
17 cookies set on arrival
17Opening the homepage sets 17 cookies (measured from a US location before any click).
43 other companies contacted
Loading the homepage contacts 43 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.
1 checks passed
Consent tool: OneTrust
A consent management tool (OneTrust) loads with the page.
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 nk.com.br, because details like these could help someone attack a site. Every review keeps them private, whatever they found.
Upkeep, stack and company
Stack
- Framework
- Tailwind CSS
- Analytics
- Google Tag Manager | Microsoft Clarity
- Hosting
- Cloudflare
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 48 issues on nk.com.br, including 25 speed issues, 5 SEO issues and 2 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.