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zeit.co

https://zeit.co· First analyzed 11 May 2026· Updated 11 May 2026
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zeit.co
Desktop screenshot of zeit.co
Mobile screenshot of zeit.co
Mobile

Sponsored

Hosting Provider

Vercel
vercel.com

IP Address

76.76.21.142

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

Nameservers

ns2.vercel-dns.com.ns1.vercel-dns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
545 ms10%
Speed Index
708 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.6 MB
250 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Platform
Vercel

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Meta Frameworks

2
Next.jsSvelteKit

CSS Frameworks

1
Tailwind CSS

Platforms

1
Vercel

SEO Analysis

B77/100
21
7
0
Meta Tags11/15
Content10/12
Headings5/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
Z
zeit.cozeit.co

Vercel: Build and deploy the best web experiences with the AI Cloud

Vercel gives developers the frameworks, workflows, and infrastructure to build a faster, more personalized web.

Title Length67 chars

Recommended: 50-60 chars (~401px / 580px)

Description Length111 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    7,011 URLs

    robots.txt

    17 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    15/100
    Poor
    4 13

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

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    20/25
    Machine Read.
    14/25
    Schema Data
    6/25
    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:1%
    Words:1,085
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    2 JSON-LD
    Person×1.3Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary19w
    Descriptive Headings
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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.
    A
    84/100
    15
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    15/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    14/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

    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.
    39/100
    F
    471 mg
    CO₂e / view
    4.6 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    539 mg
    vs
    Returning (cached)
    269 mg
    Annual (10K/mo)
    56.6 kg
    Emission Segments
    Data Center
    23 mg
    Network
    139 mg
    Device
    310 mg
    Resource Breakdown
    JavaScript
    3.5 MB
    Images
    36.1 KB
    CSS
    230.5 KB
    Fonts
    58.9 KB
    HTML
    90.8 KB
    Other
    634.2 KB
    Green Hosting Verified
    Vercel
    Provider Match
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    98%Excellent
    Static / Informational

    HTTPS

    No WAF

    40d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    23.03.2026

    Valid Until

    21.06.2026

    Subject Alternative Names (2)

    *.vercel.comvercel.com

    SHA-256 Fingerprint

    CD:BF:F9:BD:76:1F:22:83:E7:BF:C2:7D:BD:C0:05:81:4D:5C:1F:45...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ch
    Sec-CH-Prefers-Color-Scheme
    age
    20
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    default-src 'self' vercel.com *.vercel.com assets.vercel.com...
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    93

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (5)

    alt3.aspmx.l.google.com
    aspmx.l.google.com
    alt2.aspmx.l.google.com
    alt4.aspmx.l.google.com

    +1 more

    Domain Information

    zeit.co

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data Protection Officer 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.
    C
    69/100
    Mobile Friendly2 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, maximum-scale=1
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Geist

    WCAG Partial
    81/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    19/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    20/25

    4.44:1 min contrast

    Performance
    /25
    18/25

    1 font · 4 req

    Heading Font

    Geist

    Sans48px

    Body Font

    Geist

    Sans16px

    Contrast Ratio

    4.44:1

    1 issue

    Reading Comfort

    ~36 CPL

    Narrow lines
    48px
    h1
    40px
    h2
    48px
    h3
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 4.4:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    Buy on MyFontsFluid Type (rem)Flesch 56

    Color Palette

    7 unique colors
    Light
    #fafafa
    Primary· 72.89999999999999%
    #9ff2da
    Accent· 6%
    #daf3ee
    Accent· 5.8%
    #cdaf91
    Secondary· 5.6%
    #f3d9a7
    Accent· 3.8%
    #b8d7cd
    Secondary· 3%
    #60504b
    Secondary· 3%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    local(20)

    Website Identity

    Vercel

    Vercel

    SoftwareApplication

    Vercel provides the developer tools and cloud infrastructure to build, scale, and secure a faster, more personalized web.

    vercel.com/
    Location detected: 🇺🇸 United Statesvia ip
    📧 Google WorkspaceenEst. 2015

    Sponsored

    Last analyzed: 11 May 2026 at 23:33

    Historical Analysis & Change Tracking