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591.com.tw

https://591.com.tw· First analyzed 01 May 2026· Updated 01 May 2026
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591.com.tw
Desktop screenshot of 591.com.tw
Mobile screenshot of 591.com.tw
Mobile

Sponsored

Hosting Provider

DIGITAL-TECHNOLO

IP Address

203.69.66.146

Site Location

🇹🇼 Taiwanvia tld

Server Location

🇹🇼 Sanchong District, Taiwan

ASN

AS3462

Organization

DIGITAL-TECHNOLO

Server

OpenResty

CDN

CloudFront

Nameservers

ns-1246.awsdns-27.org.ns-2040.awsdns-63.co.uk.ns-363.awsdns-45.com.ns-605.awsdns-11.net.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
44 KB
88 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

12 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Microsoft ClaritySegment

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv1.9.1

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
OpenResty

Customer Support

1
Zendesk

SEO Analysis

C67/100
18
9
0
Meta Tags7/15
Content11/12
Headings8/8
Technical19/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
5
591.com.tw591.com.tw

591房屋交易網 | 租屋買屋實價登錄資訊平台

591房屋交易網是全台灣領先的房地產交易資訊平台之一, 提供新建案、中古屋、租屋、店面等交易資訊,每日90萬人在線找屋，資訊豐富齊全。更有實價登錄、房產新聞分析，是您買屋、賣屋、租屋首選網站！

Title Length23 chars

Recommended: 50-60 chars (~138px / 580px)

Description Length96 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    131 URLs

    131 sub-sitemaps

    robots.txt

    2 rules

    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

    D43/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    0/25
    Citation
    13/25

    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
    def. listsnav
    Text ratio:2%
    Words:1,095
    Token eff.:Optimal
    Sections/1K:3.7
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary20w
    Descriptive Headingsavg 1.7w
    Canonical URL
    Open Graph3/3
    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.
    D
    53/100
    6
    Passed
    5
    Critical
    2
    Warnings
    Images & Alt Text
    10/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    13/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    7/15
    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
    1/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    47/100
    A+
    5 mg
    CO₂e / view
    43.7 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    6 mg
    vs
    Returning (cached)
    3 mg
    Annual (10K/mo)
    648 g
    Emission Segments
    Data Center
    1 mg
    Network
    1 mg
    Device
    3 mg
    Resource Breakdown
    Images
    342 B
    HTML
    43.3 KB
    Green Hosting Not Verified
    DIGITAL-TECHNOLO
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    167d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    TAIWAN-CA

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    Valid From

    15.10.2025

    Valid Until

    15.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.591.com.tw591.com.tw

    SHA-256 Fingerprint

    3B:97:45:A3:AE:45:3E:62:F6:75:4B:39:0C:79:A9:94:7A:51:89:44...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate, no-cache, private)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Fri, 01 May 2026 01:23:01 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    aspmx2.googlemail.com
    mail.591.com.tw
    mail.591.com.tw
    alt1.aspmx.l.google.com

    +1 more

    Domain Information

    591.com.tw

    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
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Arial

    WCAG Partial
    63/100
    Readability
    /30
    16/30

    15px · LH 1.87

    Hierarchy
    /20
    11/20

    2.4x ratio

    WCAG
    /25
    14/25

    1.16:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    Arial

    Sans36px

    Body Font

    Arial

    Sans15px

    Contrast Ratio

    1.16:1

    15 issues

    Reading Comfort

    Single Font Family

    left aligned
    36px
    h1
    22px
    h2
    50px
    h3
    16px
    h4
    15px
    p
    Minor Second
    Scale

    ⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

    ⚠️ Wide line spacing (1.87). 1.4–1.6 is optimal for body text.

    ⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.2:1).

    ❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

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

    Color Palette

    5 unique colors
    7.69:1 AAA Light
    #ffffff
    Background· 29.599999999999998%
    #535353
    Text· 9.1%
    #edeef2
    Primary· 57.199999999999996%
    #ead1b7
    Accent· 1.3%

    Business & Marketing Stack

    3 Tools Detected

    Growing

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    1

    Categories

    3

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    23 Resources

    13
    Scripts
    10
    Styles
    7
    Async
    2
    Defer

    Top Script Sources

    s.591.com.tw(4)google-analytics.com(2)googletagmanager.com(2)needle.591.com.tw(2)scripts.clarity.ms(1)

    Website Identity

    591.com.tw

    Location detected: 🇹🇼 Taiwanvia tld
    📧 Google Workspacezh-TW

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 01 May 2026 at 01:23

    Historical Analysis & Change Tracking