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deno.com

https://deno.com· First analyzed 27 Apr 2026· Updated 27 Apr 2026
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deno.com
Desktop screenshot of deno.com
Mobile screenshot of deno.com
Mobile

Sponsored

Hosting Provider

Deno Deploy
deno.com/deploy

IP Address

69.67.170.170

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS15329

Organization

Deno

Server

deployd

Nameservers

ns-cloud-c3.googledomains.com.ns-cloud-c4.googledomains.com.ns-cloud-c1.googledomains.com.ns-cloud-c2.googledomains.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.2 MB
94 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Deno Deploy

Progressive Web App

Web Manifest

Technology Stack

12 Technologies Detected

Meta Frameworks

3
RemixAstroSvelteKit

Analytics

3
Google Analytics
Google Analytics 4
PostHog

Frameworks

2
Preact
SolidJS

Other

1
GSAP

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Payments

1
Stripe

SEO Analysis

C69/100
19
6
0
Meta Tags13/15
Content10/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
D
deno.comdeno.com

Deno, the next-generation JavaScript runtime

Deno features improved security, performance, and developer experience compared to its predecessor. It's a great time to upgrade your Node.js project to run ...

Description truncated.
Title Length44 chars

Recommended: 50-60 chars (~266px / 580px)

Description Length165 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    robots.txt

    4 rules

    Local SEO

    Local Search Readiness

    7/100
    Poor
    3 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

    D51/100
    Bot Access
    20/25
    Machine Read.
    18/25
    Schema Data
    0/25
    Citation
    13/25

    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
    code blocksnav
    Text ratio:4%
    Words:1,575
    Token eff.:Optimal
    Sections/1K:3.8
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary114w
    Descriptive Headingsavg 4.1w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    13
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    18/20
    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
    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
    9/15
    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.
    44/100
    D
    274 mg
    CO₂e / view
    2.2 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    314 mg
    vs
    Returning (cached)
    157 mg
    Annual (10K/mo)
    32.9 kg
    Emission Segments
    Data Center
    61 mg
    Network
    66 mg
    Device
    147 mg
    Resource Breakdown
    JavaScript
    217.7 KB
    Images
    405.4 KB
    CSS
    113.7 KB
    Fonts
    369.9 KB
    HTML
    39.6 KB
    Other
    1.0 MB
    Green Hosting Not Verified
    Deno Deploy
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    40%Poor
    Critical / Transactional

    HTTPS

    No WAF

    58d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    26.03.2026

    Valid Until

    24.06.2026

    Subject Alternative Names (2)

    *.deno.comdeno.com

    SHA-256 Fingerprint

    86:BD:C1:C0:26:85:E8:9F:6B:4D:D0:88:F5:45:80:59:83:ED:E6:A3...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    155
    cache-control
    🔵 Public(public, s-maxage=300)
    cache-status
    deno; hit
    content-encoding
    ⚡ Brotli(br)
    content-length
    40246
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (6)

    mxcbid3fa2xdcnxzi54yx7s24zg7mxdlgiyz27okxampj5rpxxva.mx-verification.google.com
    alt1.aspmx.l.google.com
    alt4.aspmx.l.google.com
    alt2.aspmx.l.google.com

    +2 more

    Domain Information

    deno.com

    Domain Age
    27y 1m

    Created

    09.03.1999

    Expires

    09.03.2030

    Last Updated

    21.07.2022

    Registrar

    NameCheap, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked

    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
    78/100
    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=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Inter

    WCAG Partial
    81/100
    Readability
    /30
    23/30

    18px · LH 1.56

    Hierarchy
    /20
    19/20

    4x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    1.4:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 6 req

    Heading Font

    Inter

    Sans72px

    Body Font

    Inter

    Sans18px

    Contrast Ratio

    1.4:1

    1 issue

    Reading Comfort

    ~33 CPL

    Narrow lines
    72px
    h1
    72px
    h2
    72px
    h3
    28px
    h4
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.4:1).

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

    ✅ Strong hierarchy: Headlines are 4.0x larger than body text.

    Buy on MyFontsVariable FontsFluid Type (rem)Flesch 29

    Color Palette

    7 unique colors
    5.94:1 AA Dark
    #5a5358
    Text· 5.7%
    #e4e6e2
    Other· 3.9%
    #f4f7fd
    Primary· 67.30000000000001%
    #272634
    Secondary· 7.2%
    #373d58
    Secondary· 6.1%
    #121420
    Secondary· 4.6%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    17 Resources

    13
    Scripts
    4
    Styles
    3
    Async
    2
    Defer

    Top Script Sources

    local(11)googletagmanager.com(2)

    Website Identity

    deno.com

    abuse@deno.com
    27 years old
    Location detected: 🇳🇱 Netherlandsvia ip
    NameCheap, Inc.📧 Google Workspaceen

    Sponsored

    Last analyzed: 27 Apr 2026 at 00:32

    Historical Analysis & Change Tracking