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symmetrymagazine.org

https://symmetrymagazine.org· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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symmetrymagazine.org
Desktop screenshot of symmetrymagazine.org
Mobile screenshot of symmetrymagazine.org
Mobile

Sponsored

Hosting Provider

Pantheon
pantheon.io

IP Address

185.178.196.3

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS13335

Organization

Pantheon Systems, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dom.ns.cloudflare.com.candy.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
476 ms10%
Speed Index
619 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8 KB
36 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Adobe Fonts (Typekit)

CDN

1
Cloudflare

SEO Analysis

B76/100
22
4
0
Meta Tags14/15
Content10/12
Headings7/8
Technical15/21
E-E-A-T3/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
symmetrymagazine.orgsymmetrymagazine.org

symmetry magazine | dimensions of particle physics

Symmetry is an online magazine about particle physics and its connections to other aspects of life and science, from interdisciplinary collaborations to poli...

Description truncated.
Title Length50 chars

Recommended: 50-60 chars (~305px / 580px)

Description Length171 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    8/100
    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
    header/footer
    Text ratio:11%
    Words:501
    Token eff.:Optimal
    Sections/1K:2
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary13w
    Descriptive Headingsavg 2w
    Canonical URL
    Open Graph2/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    84/100
    12
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    13/15
    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.

    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.
    78/100
    A+
    <0.001 g
    CO₂e / view
    7.6 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    <0.001 g
    vs
    Returning (cached)
    <0.001 g
    Annual (10K/mo)
    96 g
    Emission Segments
    Data Center
    <0.001 g
    Network
    <0.001 g
    Device
    <0.001 g
    Resource Breakdown
    HTML
    7.6 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    61%Fair
    Interactive

    HTTPS

    WAF

    53d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    24.03.2026

    Valid Until

    22.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    symmetrymagazine.org*.symmetrymagazine.org

    SHA-256 Fingerprint

    A8:77:B1:2C:5A:96:09:79:E1:92:2F:64:90:46:E7:26:68:7C:54:70...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(must-revalidate, no-cache, private)
    cf-cache-status
    MISS
    cf-ray
    9f44b6e61a792364-SJC
    content-encoding
    📦 Gzip(gzip)
    content-language
    en
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    ImprovMX

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    mx2.improvmx.com
    mx1.improvmx.com

    Domain Information

    symmetrymagazine.org

    Domain Age
    21y 11m

    Created

    20.05.2004

    Expires

    20.05.2026

    Last Updated

    04.07.2025

    Registrar

    GoDaddy.com, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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
    70/100
    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

    Helvetica Neue

    WCAG Partial
    76/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    17/20

    4.31x ratio

    WCAG
    /25
    14/25

    2.24:1 min contrast

    Performance
    /25
    21/25

    System fonts

    Heading Font

    Helvetica Neue

    Sans69px

    Body Font

    Helvetica Neue

    Sans16px

    Contrast Ratio

    2.24:1

    19 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    69px
    h1
    21px
    h2
    16px
    h4
    16px
    p

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

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

    ⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 2.2:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 4.3x larger than body text.

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

    AAdobe Fonts

    Color Palette

    7 unique colors
    Light
    #1b1a27
    Secondary· 41.1%
    #2a2b50
    Secondary· 27.700000000000003%
    #fef8f6
    Primary· 12.3%
    #4451a3
    Secondary· 7%
    #9ea4d8
    Secondary· 4%
    #b9e7ef
    Accent· 2.7%

    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

    9 Resources

    6
    Scripts
    3
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(2)google-analytics.com(1)kit.fontawesome.com(1)use.typekit.net(1)local(1)

    Website Identity

    symmetrymagazine.org

    21 years old
    Location detected: 🇩🇪 Germanyvia ip
    GoDaddy.com, LLC📧 ImprovMXen

    Sponsored

    Last analyzed: 30 Apr 2026 at 07:09

    Historical Analysis & Change Tracking