Back to Search
blockchaincenter.net favicon

blockchaincenter.net

https://blockchaincenter.net· First analyzed 02 May 2026· Updated 02 May 2026
Export
blockchaincenter.net
Desktop screenshot of blockchaincenter.net
Mobile screenshot of blockchaincenter.net
Mobile

Sponsored

Hosting Provider

GD MASS Network

IP Address

92.205.28.86

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Strasbourg, France

ASN

AS21499

Organization

GD MASS Network

Server

Nginx

Nameservers

ns2.domaindiscount24.net.ns3.domaindiscount24.net.ns1.domaindiscount24.net.

Performance

92

Core Web Vitals

Weight

First Contentful Paint
1.3 s10%
Speed Index
1.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
267 KB
78 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Hosting
GD MASS Network
CDN
Vercel Image

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

C68/100
20
6
0
Meta Tags13/15
Content9/12
Headings8/8
Technical11/21
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
B
blockchaincenter.netblockchaincenter.net

BlockchainCenter | Objective Crypto Rankings & Verified Reviews

Home of the Bitcoin Rainbow Chart. The Living Directory for Crypto. Objective rankings determined by community voting (ELO) and AI-verified data points. No ...

Description truncated.
Title Length63 chars

Recommended: 50-60 chars (~378px / 580px)

Description Length196 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    3/100
    Poor
    1 14 2

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

    Sponsored

    AI & LLM Readiness

    F37/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    10/25

    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
    nav
    Text ratio:3%
    Words:4,646
    Token eff.:Poor Structure
    Sections/1K:0.2
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary12w
    Descriptive Headingsavg 1w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    76/100
    10
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    18/20
    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
    12/15
    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
    2/15
    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.
    65/100
    A+
    33 mg
    CO₂e / view
    267.0 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    38 mg
    vs
    Returning (cached)
    19 mg
    Annual (10K/mo)
    4.0 kg
    Emission Segments
    Data Center
    7 mg
    Network
    8 mg
    Device
    18 mg
    Resource Breakdown
    JavaScript
    157.3 KB
    Images
    2.7 KB
    CSS
    6.9 KB
    HTML
    74.5 KB
    Other
    25.6 KB
    Green Hosting Not Verified
    GD MASS Network
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    45d

    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/1.1

    Valid From

    19.03.2026

    Valid Until

    17.06.2026

    Subject Alternative Names (2)

    blockchaincenter.netwww.blockchaincenter.net

    SHA-256 Fingerprint

    3F:72:F8:6F:F7:FE:CF:B9:E3:76:CA:B8:EB:2A:A5:0A:5B:32:26:EF...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    date
    Sat, 02 May 2026 11:36:05 GMT
    server
    nginx
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (1)

    mail.blockchaincenter.net

    Domain Information

    blockchaincenter.net

    Domain Age
    8y 9m

    Created

    20.07.2017

    Expires

    20.07.2026

    Last Updated

    30.11.2025

    Registrar

    Key-Systems GmbH

    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
    79/100
    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

    Outfit

    WCAG Partial
    76/100
    Readability
    /30
    25/30

    19px · LH 1.60

    Hierarchy
    /20
    20/20

    3.33x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    15/25

    1 font · 1 req

    Heading Font

    Outfit

    Sans64px

    Body Font

    Outfit

    Sans19px

    Contrast Ratio

    1:1

    12 issues

    Reading Comfort

    ~32 CPL

    Narrow lines
    64px
    h1
    32px
    h2
    19px
    p

    ✅ Excellent readability: 19px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ✅ Easy to read: Flesch score 80/100 — accessible to general audiences.

    ⚠️ Partial contrast: 12 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 3.3x larger than body text.

    Buy on MyFontsFlesch 80

    Color Palette

    4 unique colors
    Light
    #0b0c10
    Primary· 81.30000000000001%
    #251427
    Secondary· 11%
    #292339
    Secondary· 3.9%
    #7f79a3
    Secondary· 3.6%

    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

    15 Resources

    12
    Scripts
    3
    Styles
    11
    Async
    0
    Defer

    Top Script Sources

    local(12)

    Website Identity

    blockchaincenter.net

    8 years old
    Location detected: 🇫🇷 Francevia ip
    Key-Systems GmbHen

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 02 May 2026 at 11:36

    Historical Analysis & Change Tracking