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reactphp.org

https://reactphp.org· First analyzed 29 May 2026· Updated 29 May 2026
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reactphp.org
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Mobile screenshot of reactphp.org
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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.9.56

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

cody.ns.cloudflare.com.betty.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
473 ms10%
Speed Index
615 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
151 KB
21 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
GitHub Pages
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

C65/100
17
8
0
Meta Tags11/15
Content12/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile3/4
Indexability3/3
R
reactphp.orgreactphp.org

ReactPHP: Event-driven, non-blocking I/O with PHP - ReactPHP

Event-driven, non-blocking I/O with PHP.

Title Length60 chars

Recommended: 50-60 chars (~362px / 580px)

Description Length40 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    2 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

    D40/100
    Bot Access
    20/25
    Machine Read.
    13/25
    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
    code blocksnavheader/footer
    Text ratio:12%
    Words:1,216
    Token eff.:Optimal
    Sections/1K:33.7
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary58w
    Descriptive Headingsavg 1.7w
    Canonical URL
    Open Graph1/3
    Twitter Card0/3
    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
    80/100
    12
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    7/15
    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.
    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.
    84/100
    A+
    15 mg
    CO₂e / view
    151.3 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    18 mg
    vs
    Returning (cached)
    9 mg
    Annual (10K/mo)
    1.8 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    5 mg
    Device
    10 mg
    Resource Breakdown
    JavaScript
    88.7 KB
    Images
    1019 B
    CSS
    10.6 KB
    Fonts
    36.2 KB
    HTML
    14.9 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    77d

    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

    17.05.2026

    Valid Until

    15.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    reactphp.org*.reactphp.org

    SHA-256 Fingerprint

    02:40:5E:4C:4F:6E:6F:B1:E0:23:78:71:3F:AE:A1:27:01:1E:DD:6F...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    cache-control
    🟡 600s(max-age=600)
    cf-cache-status
    DYNAMIC
    cf-ray🇺🇸 Washington DC
    a038cd36feb7e5b6-IAD
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (3)

    mxext2.mailbox.org
    mxext1.mailbox.org
    mxext3.mailbox.org

    Domain Information

    reactphp.org

    Domain Age
    14 years

    Created

    11.05.2012

    Expires

    11.05.2027

    Last Updated

    11.05.2026

    Registrar

    INWX GmbH

    DNSSEC
    Not Enabled

    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
    77/100
    Mobile Friendly10 breakpoints
    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, shrink-to-fit=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Source Sans Pro + -apple-system

    WCAG Partial
    76/100
    Readability
    /30
    22/30

    16px · LH 1.60

    Hierarchy
    /20
    18/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Source Sans Pro

    Sans32px

    Body Font

    -apple-system

    Sans16px

    Contrast Ratio

    1:1

    19 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    32px
    h1
    32px
    h2
    24px
    h3
    16px
    p

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

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

    ⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 19 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 2.0x larger than body text.

    Buy on MyFontsFlesch 40

    Color Palette

    4 unique colors
    Light
    #ffffff
    Background· 61.5%
    #ecebe8
    Primary· 29.499999999999996%
    #86879f
    Secondary· 3.8%

    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

    1
    Scripts
    3
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    assets(1)

    Website Identity

    reactphp.org

    14 years old
    Location detected: 🇨🇦 Canadavia ip
    INWX GmbHen

    Social Profiles

    X (Twitter)GitHub

    Sponsored

    Last analyzed: 29 May 2026 at 22:05

    Historical Analysis & Change Tracking