dvr163.com

https://dvr163.com· First analyzed 09 Sept 2026· Updated 09 Sept 2026

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dvr163.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

47.90.17.27

Site Location

🇭🇰 Hong Kongvia ip

Server Location

🇭🇰 Hong Kong, Hong Kong

ASN

AS45102

Organization

ALICLOUD-HK

Server

Apache

Nameservers

ns4.dnsv5.com.ns3.dnsv5.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3 MB

17 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Apachev2.2.15

Languages

PHPv5.6.22

SEO Analysis

F38/100

Meta Tags4/15

Content10/12

Headings0/8

Technical10/21

E-E-A-T0/7

Images2/7

Links3/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

dvr163.comdvr163.com

Eseecloud

No description available for this page.

Title Length9 chars

Recommended: 50-60 chars (~53px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

14 issues found

Upgrade to view details

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

F33/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

3/25

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

Text ratio:36%

Words:2,489

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary12w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

61/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

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

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•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.

12/100

383 mg

CO₂e / view

3.0 MB

Page Weight

30%

Cleaner Than

New Visitor

438 mg

Returning (cached)

219 mg

Annual (10K/mo)

45.9 kg

Emission Segments

Data Center

86 mg

Network

92 mg

Device

205 mg

Resource Breakdown

Images

3.0 MB

HTML

62.2 KB

Green Hosting Not Verified

Alibaba Cloud

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

55d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.08.2026

Valid Until

03.11.2026

Subject Alternative Names (1)

dvr163.com

SHA-256 Fingerprint

B6:1F:FC:96:0B:A3:42:A2:93:95:BA:B3:AF:57:B4:3D:C9:51:5B:46...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

connection

Keep-Alive

content-type

text/html; charset=UTF-8

date

Wed, 09 Sep 2026 07:18:50 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

keep-alive

timeout=15, max=100

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

dvr163.com

Domain Age

15y 5m

Created

15.04.2011

Expires

15.04.2034

Last Updated

06.05.2024

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

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.

57/100

Mobile Friendly2 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=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG AAA

76/100

Readability

/30

21/30

14px · LH 1.60

Hierarchy

/20

10/20

WCAG

/25

23/25

12.63:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

Helvetica Neue

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

12.63:1

WCAG AAA (≥7:1)

Reading Comfort

~36 CPL

Narrow lines

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Hard to read: Flesch score 45/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 12.6:1).

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

Flesch 45

Color Palette

10 unique colors

21:1 AAA Light

#ffffff

Background· 40.800000000000004%

#000000

Text· 21.3%

#771b14

Primary· 6.2%

#410e0b

Accent· 2.6%

#71332f

Secondary· 0.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Website Identity

dvr163.com

15 years old

Location detected: 🇭🇰 Hong Kongvia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.zh-CN

Sponsored

Last analyzed: 09 Sept 2026 at 07:19

Historical Analysis & Change Tracking