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seafile.com

https://seafile.com· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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seafile.com
Desktop screenshot of seafile.com
Mobile screenshot of seafile.com
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

34.230.38.71

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Nginx

Nameservers

ns-1934.awsdns-49.co.uk.ns-232.awsdns-29.com.ns-526.awsdns-01.net.ns-1253.awsdns-28.org.

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
33 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

6 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv3.7.1

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Web Servers

1
Nginxv1.18.0

SEO Analysis

C62/100
17
7
0
Meta Tags14/15
Content10/12
Headings8/8
Technical11/21
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
S
seafile.comseafile.com

Seafile - Open Source File Sync and Share Software

Seafile is an open source, self-hosted file sync and share solution with high performance and reliability. Sync, access, and collaborate on files on your own...

Description truncated.
Title Length50 chars

Recommended: 50-60 chars (~306px / 580px)

Description Length182 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    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

    D41/100
    Bot Access
    20/25
    Machine Read.
    12/25
    Schema Data
    0/25
    Citation
    9/25

    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:13%
    Words:354
    Token eff.:Optimal
    Sections/1K:28.2
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary37w
    Descriptive Headingsavg 3.5w
    Canonical URL
    Open Graph0/3
    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
    81/100
    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
    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
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    51/100
    C
    200 mg
    CO₂e / view
    1.9 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    229 mg
    vs
    Returning (cached)
    114 mg
    Annual (10K/mo)
    24.0 kg
    Emission Segments
    Data Center
    10 mg
    Network
    59 mg
    Device
    131 mg
    Resource Breakdown
    JavaScript
    165.9 KB
    Images
    1.3 MB
    CSS
    512.6 KB
    HTML
    4.8 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    35d

    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

    04.03.2026

    Valid Until

    02.06.2026

    Subject Alternative Names (2)

    seafile.comwww.seafile.com

    SHA-256 Fingerprint

    F6:47:DD:26:F2:46:E2:83:2D:8B:7D:FF:30:13:82:E3:24:E7:82:63...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-language
    zh-CN
    content-type
    text/html; charset=utf-8
    date
    Tue, 28 Apr 2026 08:17:18 GMT
    last-modified
    Mon, 21 Apr 2025 15:51:51 GMT
    Good Warning Issue

    Email Infrastructure

    Fastmail

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (2)

    in2-smtp.messagingengine.com
    in1-smtp.messagingengine.com

    Domain Information

    seafile.com

    Domain Age
    14y 11m

    Created

    25.05.2011

    Expires

    25.05.2026

    Last Updated

    12.05.2025

    Registrar

    Alibaba Cloud Computing (Beijing) Co., Ltd.

    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.
    C
    63/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    -apple-system

    WCAG Partial
    73/100
    Readability
    /30
    23/30

    18px · LH 1.78

    Hierarchy
    /20
    18/20

    2.44x ratio · ✓ H1→H6

    WCAG
    /25
    13/25

    2.16:1 min contrast

    Performance
    /25
    19/25

    System fonts

    Heading Font

    -apple-system

    Sans44px

    Body Font

    -apple-system

    Sans18px

    Contrast Ratio

    2.16:1

    8 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    44px
    h1
    40px
    h2
    36px
    h3
    18px
    h4
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

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

    ⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 2.2:1).

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

    ✅ Strong hierarchy: Headlines are 2.4x larger than body text.

    ❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

    Flesch 0

    Color Palette

    6 unique colors
    Light
    #ffffff
    Background· 84.29999999999998%
    #fdd9a0
    Primary· 3.9000000000000004%
    #dad5cd
    Secondary· 3.5%
    #484962
    Secondary· 3.5%
    #cca66e
    Secondary· 2.5%
    #f3f2ee
    Secondary· 2.4%

    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

    5
    Scripts
    4
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    local(4)ssl.google-analytics.com(1)

    Website Identity

    seafile.com

    14 years old
    Location detected: 🇺🇸 United Statesvia ip
    Alibaba Cloud Computing (Beijing) Co., Ltd.📧 Fastmailen

    Sponsored

    Last analyzed: 28 Apr 2026 at 08:17

    Historical Analysis & Change Tracking