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delta.chat

https://delta.chat· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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delta.chat
Desktop screenshot of delta.chat
Mobile screenshot of delta.chat
Mobile

Sponsored

Hosting Provider

GH AMS

IP Address

37.218.242.41

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS47172

Organization

GH AMS

Server

Nginx

Nameservers

robotns2.second-ns.de.robotns3.second-ns.com.ns1.first-ns.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
232 ms10%
Speed Index
302 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
111 KB
12 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
GH AMS

Technology Stack

1 Technologies Detected

Web Servers

1
Nginxv1.22.1

SEO Analysis

C65/100
19
5
0
Meta Tags14/15
Content6/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
D
delta.chatdelta.chat

Delta Chat, decentralized secure messenger - Delta Chat

Delta Chat is a decentralized and secure messenger app 💬 Reliable instant messaging with multi-profile and multi-device support ⚡️ Sign up to secure and int...

Description truncated.
Title Length55 chars

Recommended: 50-60 chars (~332px / 580px)

Description Length200 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    398 URLs

    robots.txt

    1 rules

    Allows all crawlers

    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

    F35/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    0/25
    Citation
    7/25

    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
    navheader/footer
    Text ratio:13%
    Words:140
    Token eff.:Too Short
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary10w
    Descriptive Headings
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    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.
    B
    75/100
    10
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    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
    1/15
    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.
    83/100
    A+
    11 mg
    CO₂e / view
    111.0 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    13 mg
    vs
    Returning (cached)
    6 mg
    Annual (10K/mo)
    1.3 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    3 mg
    Device
    7 mg
    Resource Breakdown
    JavaScript
    1.2 KB
    Images
    104.7 KB
    CSS
    2.7 KB
    HTML
    2.4 KB
    Green Hosting Verified
    Greenhost
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    73d

    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

    14.04.2026

    Valid Until

    13.07.2026

    Subject Alternative Names (1)

    delta.chat

    SHA-256 Fingerprint

    40:EC:FA:02:9D:1E:29:82:13:CF:0A:14:76:CB:BE:94:94:01:0C:80...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html
    date
    Thu, 30 Apr 2026 17:37:45 GMT
    etag
    W/"69f0cc36-40f"
    last-modified
    Tue, 28 Apr 2026 15:03:18 GMT
    server
    nginx/1.22.1
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    Domain Information

    delta.chat

    Domain Age
    9y 4m

    Created

    20.12.2016

    Expires

    20.12.2026

    Last Updated

    07.04.2026

    Registrar

    united-domains 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.
    D
    59/100
    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, minimum-scale=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Tahoma + Arial

    WCAG Partial
    71/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    12/20

    1.62x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Tahoma

    Sans26px

    Body Font

    Arial

    Sans16px

    Contrast Ratio

    1:1

    7 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    26px
    h1
    16px
    p

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

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

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Buy on MyFontsFlesch 0

    Color Palette

    11 unique colors
    7.19:1 AAA Light
    #ffffff
    Text· 76.5%
    #53585d
    Other· 2.5%
    #334a53
    Primary· 2.9%
    #607d82
    Secondary· 2.8%
    #96b2b5
    Secondary· 1.8%
    #9b9486
    Secondary· 1.8%
    #d8d2c5
    Secondary· 1.7%

    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

    4 Resources

    2
    Scripts
    2
    Styles
    0
    Async
    2
    Defer

    Top Script Sources

    ..(1)cosmos.delta.chat(1)

    Website Identity

    delta.chat

    9 years old
    Location detected: 🇳🇱 Netherlandsvia ip
    united-domains GmbHen

    Social Profiles

    GitHub

    Sponsored

    Last analyzed: 30 Apr 2026 at 17:37

    Historical Analysis & Change Tracking