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f319.com

https://f319.com· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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f319.com
Desktop screenshot of f319.com
Mobile screenshot of f319.com
Mobile

Sponsored

Hosting Provider

Vietnam Posts and Telecommunications Group

IP Address

123.30.242.70

Site Location

🇻🇳 Vietnamvia ip

Server Location

🇻🇳 Hanoi, Vietnam

ASN

AS135905

Organization

Vietnam Posts and Telecommunications Group

Nameservers

ns6.synerfy.vn.ns7.synerfy.vn.ns8.synerfy.vn.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
995 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
500 KB
107 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Vietnam Posts and Telecommunications Group

Technology Stack

5 Technologies Detected

Advertising

2
Google AdsGoogle AdSense

Libraries

1
jQueryv1.11.0

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

SEO Analysis

B72/100
19
6
0
Meta Tags15/15
Content11/12
Headings5/8
Technical17/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
F
f319.comf319.com

Thị trường chứng khoán | Diễn đàn chứng khoán F319.com

Diễn đàn thị trường chứng khoán F319.com là diễn đàn thảo luận tin tức thị trường chứng khoán, phân tích tài chính sôi động số 1 Việt Nam.

Title Length54 chars

Recommended: 50-60 chars (~328px / 580px)

Description Length138 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    15 rules

    Local SEO

    Local Search Readiness

    17/100
    Poor
    6 11 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. listsnavheader/footer
    Text ratio:5%
    Words:1,017
    Token eff.:Optimal
    Sections/1K:25.6
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary24w
    Descriptive Headingsavg 8.3w
    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.
    D
    57/100
    8
    Passed
    5
    Critical
    3
    Warnings
    Images & Alt Text
    15/20
    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
    0/15
    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
    6/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    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.
    48/100
    A
    62 mg
    CO₂e / view
    499.8 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    71 mg
    vs
    Returning (cached)
    35 mg
    Annual (10K/mo)
    7.4 kg
    Emission Segments
    Data Center
    14 mg
    Network
    15 mg
    Device
    33 mg
    Resource Breakdown
    JavaScript
    337.5 KB
    Images
    76.0 KB
    CSS
    13.0 KB
    HTML
    19.3 KB
    Other
    54.0 KB
    Green Hosting Not Verified
    Vietnam Posts and Telecommunications Group
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    86d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    25.04.2026

    Valid Until

    24.07.2026

    Subject Alternative Names (2)

    *.f319.comf319.com

    SHA-256 Fingerprint

    A9:16:3D:38:72:EF:5B:C9:A1:47:46:C9:EB:DA:CE:5D:CE:2D:EC:C2...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(private, max-age=0)
    content-encoding
    📦 Gzip(gzip)
    content-length
    19426
    content-type
    text/html; charset=UTF-8
    date
    Tue, 28 Apr 2026 03:31:01 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    55

    SPF
    DKIM
    DMARC

    Domain Information

    f319.com

    Domain Age
    16y 4m

    Created

    15.12.2009

    Expires

    15.12.2026

    Last Updated

    10.11.2025

    Registrar

    P.A. Viet Nam Company Limited

    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.
    D
    58/100
    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

    tahoma

    WCAG Partial
    56/100
    Readability
    /30
    15/30

    11px · LH 1.23

    Hierarchy
    /20
    13/20

    2.18x ratio

    WCAG
    /25
    14/25

    2.96:1 min contrast

    Performance
    /25
    14/25

    1 font

    Heading Font

    tahoma

    Sans24px

    Body Font

    tahoma

    Sans11px

    Contrast Ratio

    2.96:1

    19 issues

    Reading Comfort

    ~57 CPL

    Optimal (45–75)
    24px
    h1
    14px
    h3
    11px
    p

    ❌ Critical: 11px body text is too small. Minimum 14px, recommend 16px+.

    ⚠️ Tight line spacing (1.23). Increase to 1.4–1.6 for better readability.

    ✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

    ✅ Easy to read: Flesch score 97/100 — accessible to general audiences.

    ⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 3.0:1).

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

    Buy on MyFontsFlesch 97

    Color Palette

    5 unique colors
    2.15:1 Fail Light
    #ffffff
    Background· 71.4%
    #a9b3b2
    Other· 5.4%
    #1a5f91
    Primary· 5.7%
    #d4dee3
    Secondary· 4.8%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSense

    Sponsored

    Scripts & Styles

    22 Resources

    20
    Scripts
    2
    Styles
    17
    Async
    0
    Defer

    Top Script Sources

    media1.admicro.vn(12)pagead2.googlesyndication.com(2)googletagmanager.com(1)ssl.google-analytics.com(1)sb.scorecardresearch.com(1)

    Website Identity

    f319.com

    mailTo:[email protected]
    0473095555
    16 years old
    Location detected: 🇻🇳 Vietnamvia ip
    P.A. Viet Nam Company Limitedvi-VN

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 28 Apr 2026 at 03:31

    Historical Analysis & Change Tracking

    f319.com Technology Stack - Built With jQuery, Google Analytics, Google Tag Manager, Google Ads, Google AdSense | StackOptic | StackOptic