StackOptic
Back to Search
4kwallpapers.com favicon

4kwallpapers.com

https://4kwallpapers.com· First analyzed 12 May 2026· Updated 12 May 2026
Export
4kwallpapers.com
Desktop screenshot of 4kwallpapers.com
Mobile screenshot of 4kwallpapers.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.69.36

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

kallie.ns.cloudflare.com.tim.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
556 ms10%
Speed Index
723 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
67 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web Manifest

Technology Stack

13 Technologies Detected

Advertising

4
Google AdsGoogle AdSenseCriteoOutbrain

Icon Libraries

2
Font AwesomeMaterial Icons

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.6.1

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Payments

1
Square

CDN

1
Cloudflare

SEO Analysis

B73/100
22
7
0
Meta Tags14/15
Content10/12
Headings6/8
Technical20/25
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
4
4kwallpapers.com4kwallpapers.com

4K Wallpapers for PC, Desktop & Mobile Phones

Ultra HD 4K wallpapers for PC desktop, laptop, Apple, Android mobile phones, tablets in high quality 4K UHD, 5K, 8K Super UHD resolutions for free download

Title Length45 chars

Recommended: 50-60 chars (~273px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    30,888 URLs

    robots.txt

    10 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    F35/100
    Bot Access
    20/25
    Machine Read.
    4/25
    Schema Data
    0/25
    Citation
    11/25

    AI Bot Access

    14/14 accessible
    AI Search
    OAI-SearchBot
    PerplexityBot
    Claude-SearchBot
    Gemini-Deep-Research
    DuckAssistBot
    Training
    GPTBot
    ClaudeBot
    Google-Extended
    Meta-ExternalAgent
    Bytespiderinfo
    Amazonbot
    Applebot-Extended
    CCBotinfo
    Fetch
    ChatGPT-User

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:11%
    Words:8,356
    Token eff.:Excessive
    Sections/1K:0.1

    Structured Data

    Microdata

    Citation Readiness

    Opening Summary85w
    Descriptive Headingsavg 4.1w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    Accessibility

    WCAG 2.1 Compliance

    Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
    B
    72/100
    11
    Passed
    4
    Critical
    2
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    12/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    10/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    Carbon Footprint

    SWDM v4 · Eco-Score

    Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
    58/100
    C
    197 mg
    CO₂e / view
    1.9 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    225 mg
    vs
    Returning (cached)
    113 mg
    Annual (10K/mo)
    23.6 kg
    Emission Segments
    Data Center
    10 mg
    Network
    58 mg
    Device
    129 mg
    Resource Breakdown
    JavaScript
    457.4 KB
    Images
    1.3 MB
    CSS
    27.8 KB
    Fonts
    99.8 KB
    HTML
    8.6 KB
    Other
    69.0 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    85%Very Good
    Critical / Transactional

    HTTPS

    WAF

    57d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    09.04.2026

    Valid Until

    08.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    4kwallpapers.com*.4kwallpapers.com

    SHA-256 Fingerprint

    59:8D:3E:3B:5D:0D:C8:89:E9:9C:77:00:BF:07:EF:31:5B:F9:77:88...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔴 No Cache(no-cache, must-revalidate)
    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9fa6591ffa1e6f8e-CDG
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    upgrade-insecure-requests; block-all-mixed-content
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    73

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    Domain Information

    4kwallpapers.com

    Domain Age
    15y 10m

    Created

    10.07.2010

    Expires

    10.07.2027

    Last Updated

    12.12.2025

    Registrar

    Name.com, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice
    Privacy policy page linked
    Legitimate interest basis mentioned

    Mobile Compatibility

    Viewport & Responsive Test

    Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
    B
    76/100
    Mobile Friendly11 breakpoints
    Viewport Meta
    The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
    Responsive Design
    Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
    Touch Icons
    Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
    Readable Font Size
    Base font size should be at least 16px on mobile to ensure text is readable without zooming.
    Relative Units
    Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
    No H-Scroll Risk
    No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
    Tap Targets OK
    Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
    No Fixed Widths
    No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
    Viewport
    width=device-width, initial-scale=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Outfit + Open Sans

    WCAG Partial
    45/100
    Readability
    /30
    10/30

    12px · LH 1.33

    Hierarchy
    /20
    12/20

    2x ratio

    WCAG
    /25
    11/25

    1:1 min contrast

    Performance
    /25
    12/25

    3 fonts · 6 req

    Heading Font

    Outfit

    Sans24px

    Body Font

    Open Sans

    Sans12px

    Contrast Ratio

    1:1

    16 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    24px
    h1
    15px
    h2
    12px
    p

    ❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.0x larger than body text.

    GGoogle FontsBuy on MyFontsFlesch 0

    Color Palette

    7 unique colors
    20.25:1 AAA Light
    #ffffff
    Background· 20%
    #060607
    Secondary· 4.6%
    #121317
    Primary· 54.3%
    #473332
    Secondary· 5.9%
    #20323e
    Secondary· 2.7%

    Business & Marketing Stack

    2 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    2

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseMedia.netSovrnPubMaticOpenXIndex Exchange

    Sponsored

    Scripts & Styles

    16 Resources

    12
    Scripts
    4
    Styles
    9
    Async
    1
    Defer

    Top Script Sources

    pagead2.googlesyndication.com(4)local(3)fundingchoicesmessages.google.com(3)googletagmanager.com(1)static.cloudflareinsights.com(1)

    Website Identity

    4kwallpapers.com

    15 years old
    Location detected: 🇨🇦 Canadavia ip
    Name.com, Inc.en

    Sponsored

    Last analyzed: 12 May 2026 at 03:31

    Historical Analysis & Change Tracking