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sigmaprime.io

https://sigmaprime.io· First analyzed 02 Jun 2026· Updated 02 Jun 2026
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sigmaprime.io
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

13.33.235.39

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

augustus.ns.cloudflare.com.leah.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
478 ms10%
Speed Index
621 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
27 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

Other

1
GSAP

Other

1
Three.js

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C67/100
21
6
0
Meta Tags7/15
Content8/12
Headings6/8
Technical19/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sigmaprime.iosigmaprime.io

Sigma Prime

We are a collective of researches, developers and academics interested in the blockchain and cyber security spaces. We strive to help the blockchain ecosyste...

Description truncated.
Title Length11 chars

Recommended: 50-60 chars (~69px / 580px)

Description Length209 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    1 URLs

    1 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 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

    D44/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    0/25
    Citation
    12/25

    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
    Text ratio:2%
    Words:476
    Token eff.:Optimal

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary17w
    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 (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
    76/100
    10
    Passed
    1
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    16/20
    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.
    1 recommendation
    • •Accessibility recommendation preview...
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    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.
    52/100
    C
    177 mg
    CO₂e / view
    1.7 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    202 mg
    vs
    Returning (cached)
    101 mg
    Annual (10K/mo)
    21.2 kg
    Emission Segments
    Data Center
    9 mg
    Network
    52 mg
    Device
    116 mg
    Resource Breakdown
    JavaScript
    775.3 KB
    Images
    587.0 KB
    CSS
    39.6 KB
    Fonts
    255.5 KB
    HTML
    92.2 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    7 recommendations
    • •Carbon footprint recommendation preview...
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    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    WAF

    188d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    09.11.2025

    Valid Until

    07.12.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (4)

    *.sigmaprime.io*.sigp.iosigp.iosigmaprime.io

    SHA-256 Fingerprint

    9B:5F:54:AA:22:41:E7:6D:F9:4F:5A:34:60:9D:43:83:83:FB:AF:0C...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    71272
    content-length
    94154
    content-type
    text/html
    date
    Mon, 01 Jun 2026 07:53:10 GMT
    etag
    "40899aaac116f50840bf7a1838ecca16"
    last-modified
    Wed, 23 Jul 2025 01:58:38 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    93

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (5)

    ALT2.ASPMX.L.GOOGLE.COM
    ALT1.ASPMX.L.GOOGLE.COM
    ALT4.ASPMX.L.GOOGLE.COM
    ASPMX.L.GOOGLE.COM

    +1 more

    Domain Information

    sigmaprime.io

    Domain Age
    9y 8m

    Created

    29.09.2016

    Expires

    29.09.2026

    Last Updated

    22.05.2026

    Registrar

    Gandi SAS

    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
    71/100
    Mobile Friendly
    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...
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    Typography & Readability

    __general_aac91a

    WCAG Partial
    60/100
    Readability
    /30
    14/30

    24px · LH 1.00

    Hierarchy
    /20
    16/20

    2.33x ratio · ✓ H1→H6

    WCAG
    /25
    12/25

    1:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 4 req

    Heading Font

    __general_aac91a

    Sans56px

    Body Font

    __general_aac91a

    Sans24px

    Contrast Ratio

    1:1

    33 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    56px
    h1
    24px
    p

    ✅ Excellent readability: 24px body text is ideal for all devices.

    ⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 11/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 33 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 2.3x larger than body text.

    Buy on MyFontsFlesch 11

    Color Palette

    2 unique colors
    2.06:1 Fail Dark
    #000000
    Background· 95.7%
    #414143
    Other· 4.1%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google AnalyticsFree
    SmartlookSMB

    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

    16
    Scripts
    1
    Styles
    11
    Async
    0
    Defer

    Top Script Sources

    local(11)web-sdk.smartlook.com(3)cdnjs.cloudflare.com(1)googletagmanager.com(1)

    Website Identity

    sigmaprime.io

    9 years old
    Location detected: 🇺🇸 United Statesvia ip
    Gandi SAS📧 Google Workspaceen

    Sponsored

    Last analyzed: 02 Jun 2026 at 03:41

    Historical Analysis & Change Tracking