StackOptic
Back to Search
zed.dev favicon

zed.dev

https://zed.dev· First analyzed 28 Apr 2026· Updated 28 Apr 2026
Export
zed.dev
Desktop screenshot of zed.dev
Mobile screenshot of zed.dev
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.18.6.151

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

beau.ns.cloudflare.com.vera.ns.cloudflare.com.

Performance

92

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.8 MB
163 requests

Image Optimization

Lazy LoadWebPResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

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

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

Other

1
D3.js

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

C67/100
22
6
0
Meta Tags7/15
Content8/12
Headings8/8
Technical15/25
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
Z
zed.devzed.dev

Zed — Love your editor again

Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

Title Length28 chars

Recommended: 50-60 chars (~169px / 580px)

Description Length93 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,343 URLs

    robots.txt

    9 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    4/100
    Poor
    1 15 2

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

    Sponsored

    AI & LLM Readiness

    D50/100
    Bot Access
    20/25
    Machine Read.
    19/25
    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.txtvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:1%
    Words:2,839
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary26w
    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 (7)
    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
    83/100
    14
    Passed
    1
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    9/15
    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.
    2 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.
    45/100
    E
    294 mg
    CO₂e / view
    2.8 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    336 mg
    vs
    Returning (cached)
    168 mg
    Annual (10K/mo)
    35.3 kg
    Emission Segments
    Data Center
    14 mg
    Network
    86 mg
    Device
    193 mg
    Resource Breakdown
    JavaScript
    877.0 KB
    Images
    49.5 KB
    CSS
    65.5 KB
    Fonts
    761.8 KB
    HTML
    179.2 KB
    Other
    977.2 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    WAF

    89d

    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

    Valid From

    28.04.2026

    Valid Until

    27.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (3)

    zed.devbeta-site.zed.dev*.beta-site.zed.dev

    SHA-256 Fingerprint

    59:F0:0C:DC:4A:88:D5:ED:2D:F4:7F:EF:37:FC:92:AE:D7:B3:33:B3...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    age
    56097
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    cf-cache-status
    DYNAMIC
    cf-ray
    9f34eb1de99ceb26-SJC
    content-disposition
    inline
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    93

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (5)

    alt3.aspmx.l.google.com
    alt4.aspmx.l.google.com
    alt1.aspmx.l.google.com
    alt2.aspmx.l.google.com

    +1 more

    Domain Information

    zed.dev

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    B
    75/100
    Mobile Friendly1 breakpoint
    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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    __plexSerif_fc47f9 + __writer_1deb74

    WCAG Partial
    73/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    17/20

    3x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    1:1 min contrast

    Performance
    /25
    16/25

    2 fonts · 14 req

    Heading Font

    __plexSerif_fc47f9

    Serif48px

    Body Font

    __writer_1deb74

    Sans16px

    Contrast Ratio

    1:1

    10 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    48px
    h1
    26px
    h2
    17px
    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).

    ⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.0:1).

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

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

    Buy on MyFontsFluid Type (rem)Flesch 36

    Color Palette

    3 unique colors
    Light
    #f4f4f2
    Background· 83.79999999999998%
    #303849
    Primary· 12.1%
    #b8bdc9
    Secondary· 4.1%

    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

    24 Resources

    20
    Scripts
    4
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    local(20)

    Website Identity

    zed.dev

    Location detected: 🇨🇦 Canadavia ip
    📧 Google Workspaceen

    Sponsored

    Last analyzed: 28 Apr 2026 at 09:08

    Historical Analysis & Change Tracking