opticsjournal.net

https://opticsjournal.net· First analyzed 19 May 2026· Updated 19 May 2026

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opticsjournal.net

Mobile

Sponsored

Hosting Provider

Aliyun Computing Co., LTD

IP Address

47.103.34.243

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Shanghai, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Tengine

Nameservers

ns2.35.net.ns1.35.net.ns4.35.net.ns3.35.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

1.9 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.1 MB

85 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Aliyun Computing Co., LTD

Technology Stack

5 Technologies Detected

CSS Frameworks

Libraries

UI Components

Web Servers

SEO Analysis

D55/100

Meta Tags7/15

Content11/12

Headings3/8

Technical13/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

opticsjournal.netopticsjournal.net

【中国光学期刊网】欢迎您

中国光学期刊网——我国光电行业旗舰型光电网络服务平台。其宗旨是为会员提供更好的光电资讯、文献情报、展会、培训及光电产品等相关服务，也是服务于读者、作者、专家、企业的期刊数字出版服务平台。

Title Length12 chars

Recommended: 50-60 chars (~74px / 580px)

Description Length93 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (77/77) — critical for accessibility and SEO

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

202 URLs

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

0/100

Poor

15 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F34/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

0/25

Citation

5/25

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

navheader/footer

Text ratio:4%

Words:699

Token eff.:Optimal

Sections/1K:12.9

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

12/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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

7/15

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

4 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

644 mg

CO₂e / view

5.1 MB

Page Weight

15%

Cleaner Than

New Visitor

736 mg

Returning (cached)

368 mg

Annual (10K/mo)

77.3 kg

Emission Segments

Data Center

144 mg

Network

155 mg

Device

346 mg

Resource Breakdown

JavaScript

128.0 KB

Images

4.8 MB

CSS

164.6 KB

HTML

31.3 KB

Other

3.5 KB

Green Hosting Not Verified

Aliyun Computing Co., LTD

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

290d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.02.2026

Valid Until

05.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.opticsjournal.netopticsjournal.net

SHA-256 Fingerprint

38:E8:9A:96:28:9B:88:94:38:2F:24:BD:CE:E2:75:B8:77:5F:7A:68...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

content-length

23682

content-type

text/html; charset=utf-8

date

Tue, 19 May 2026 14:52:55 GMT

pragma

no-cache

server

Tengine

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx.cstnet.cn

Domain Information

opticsjournal.net

Domain Age

23y 5m

Created

18.12.2002

Expires

18.12.2030

Last Updated

27.05.2025

Registrar

Xiamen 35.com Information Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

66/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

65/100

Readability

/30

20/30

14px · LH 1.43

Hierarchy

/20

11/20

1x ratio

WCAG

/25

13/25

1:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Arial

Sans14px

Body Font

Arial

Sans14px

Contrast Ratio

1:1

15 issues

Reading Comfort

Single Font Family

left aligned

14px

22px

14px

Perfect Fourth

Scale

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

Color Palette

9 unique colors

10.67:1 AAA Light

#ffffff

Background· 43.4%

#3d3e43

Other· 18.599999999999998%

#040a35

Accent· 10.1%

#9aa5ad

Secondary· 6.6%

#0c1453

Accent· 6.5%

#235e95

Accent· 5.5%

#dde3e4

Text· 5.2%

#f6efe6

Primary· 1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)hm.baidu.com(1)

Website Identity