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useblackbox.io

https://useblackbox.io· First analyzed 16 May 2026· Updated 16 May 2026
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useblackbox.io
Desktop screenshot of useblackbox.io
Mobile screenshot of useblackbox.io
Mobile

Sponsored

Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

34.96.98.129

Site Location

🇺🇸 San Francisco, United Statesvia schema_nap

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Google Frontend

Nameservers

ns34.domaincontrol.com.ns33.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
562 ms10%
Speed Index
731 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
572 KB
75 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Hosting
Google Cloud Platform

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

Libraries

1
Lodashv4.17.20

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Languages

1
Go

SEO Analysis

A82/100
25
4
0
Meta Tags9/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T5/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
U
useblackbox.iouseblackbox.io

BLACKBOX AI

Build and ship software faster with BLACKBOX AI: multi-agent coding, AI-native IDE, VS Code extension, CLI, and a unified inference API.

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length136 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    26 URLs

    robots.txt

    6 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    23/100
    Needs Work
    6 14

    Sponsored

    AI & LLM Readiness

    D58/100
    Bot Access
    20/25
    Machine Read.
    19/25
    Schema Data
    6/25
    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.txtvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:7%
    Words:2,498
    Token eff.:Optimal
    Sections/1K:2
    Depth:1/5

    Structured Data

    2 JSON-LD
    Organization×1.1WebSite
    sameAs entity links

    Citation Readiness

    Opening Summary630w
    Descriptive Headingsavg 2.1w
    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
    80/100
    12
    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
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    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.
    71/100
    A
    58 mg
    CO₂e / view
    571.9 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    66 mg
    vs
    Returning (cached)
    33 mg
    Annual (10K/mo)
    6.9 kg
    Emission Segments
    Data Center
    3 mg
    Network
    17 mg
    Device
    38 mg
    Resource Breakdown
    JavaScript
    334.0 KB
    Images
    33.4 KB
    CSS
    29.7 KB
    Fonts
    58.5 KB
    HTML
    37.4 KB
    Other
    79.0 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    134d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    ZeroSSL

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-384 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    27.09.2025

    Valid Until

    27.09.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.blackbox.aiblackbox.ai

    SHA-256 Fingerprint

    D7:F5:6D:C0:BA:A1:E3:A9:74:E4:1D:DF:1C:36:7F:24:CF:2D:91:8E...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
    cache-control
    🟡 1 Hours(public,max-age=3600,s-maxage=3600)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    date
    Sat, 16 May 2026 08:24:06 GMT
    etag
    "y6l4hrshmm5no4"
    Good Warning Issue

    Email Infrastructure

    Mailgun

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (2)

    mxa.mailgun.org
    mxb.mailgun.org

    Domain Information

    useblackbox.io

    Domain Age
    4y 11m

    Created

    09.06.2021

    Expires

    09.06.2026

    Last Updated

    24.07.2025

    Registrar

    GoDaddy.com, LLC

    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.
    A
    83/100
    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

    Typography & Readability

    Apple Color Emoji

    WCAG Partial
    76/100
    Readability
    /30
    18/30

    18px · LH 1.63

    Hierarchy
    /20
    20/20

    8x ratio · ✓ H1→H6

    WCAG
    /25
    18/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 3 req

    Heading Font

    Apple Color Emoji

    Sans144px

    Body Font

    Apple Color Emoji

    Sans18px

    Contrast Ratio

    1:1

    43 issues

    Reading Comfort

    ~41 CPL

    Narrow lines
    144px
    h1
    96px
    h2
    14px
    h3
    18px
    p

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

    ⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 43 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 8.0x larger than body text.

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

    Buy on MyFontsFluid Type (rem)Flesch 34

    Color Palette

    4 unique colors
    18.43:1 AAA Dark
    #000000
    Primary· 81.8%
    #f0f0f0
    Background· 6.1%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google AnalyticsFree
    Google Tag ManagerFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    22 Resources

    20
    Scripts
    2
    Styles
    16
    Async
    2
    Defer

    Top Script Sources

    local(18)googletagmanager.com(2)

    Website Identity

    BLACKBOX AI

    BLACKBOX AI

    Organization

    AI-powered coding platform trusted by 30 million developers. Multi-agent orchestration, unified inference API, AI-native IDE, and CLI.

    www.blackbox.ai
    4 years old

    535 Mission Street, San Francisco

    San Francisco, CA

    US

    Location detected: 🇺🇸 United States, San Franciscovia schema_nap
    GoDaddy.com, LLC📧 Mailgunen

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 16 May 2026 at 08:24

    Historical Analysis & Change Tracking