Skip to main content
SGSiteGraph

lceda.cn website report

国产嘉立创EDA - 一个用心为中国人定制的电路板开发平台

Last scanned

Overall score

Fair

About lceda.cn

lceda.cn is a website. It describes itself as “国产嘉立创EDA - 基于浏览器的免费电路板设计软件:在线绘制原理图、仿真、PCB制作，简单易用，功能强大，专为中国人设计。”.

Technologies
0
Email security
D
45/100
Trackers
—
AI crawlers
—
Carbon / visit
A
0.19 g CO2
Domain age
—

Score profile

SEO55Performance90Security75Accessibility85
This siteAll scanned sites median

Top issues to fix

14 issues found · 1 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 2 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+8 more issues — details in the sections below.

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

How it compares

lceda.cn scores higher overall than 23% of the 163,243 sites we have scanned.

vs. All scanned sites

163,243 sites
Overall23rd
SEO20th
Performance25th
Security50th
Accessibility20th

The dot is this site; the tick is the typical (median) score for the group. The number on the right is the percentile: the share of the group this site scores above.

Technology stack

No technologies were detected in the latest scan.

Hosting & DNS

Domain
lceda.cn
IP address
—
ASN
—
IPv6
Not supported
HTTP
HTTP/2
0
A
0
AAAA
0
MX
0
NS
0
TXT
0
CAA
Show DNS record values

TXT record contents are not republished; only their count is shown.

Security

lceda.cn uses TLS 1.3 with a certificate valid for 87 more days and sets 1 of 6 recommended security headers.

Security

Security headers1 of 6 set

  • HSTS
    Forces HTTPS
  • CSP
    Blocks injected scripts
  • X-Frame-Options
    Stops clickjacking
  • X-Content-Type
    Stops MIME sniffing
  • Referrer-Policy
    Limits URL leakage
  • Permissions-Policy
    Restricts browser features

TLS certificate

VerifiedTLS 1.3 · Sectigo Limited
May 6, 202687 days leftNov 20, 2026
Names covered
2
Cookies set
4

Email security

lceda.cn scores D for email security, with SPF and DMARC policy “quarantine”.

D
45 / 100
  • SPFWeak

    Marks unlisted senders as suspicious (~all) but does not reject them.

  • DMARCWeak

    Forged mail is sent to spam.

  • MTA-STSNot set

    Not published; mail to this domain can be downgraded to plaintext.

  • BIMINot set

    Not published (optional).

Performance & carbon

lceda.cn scores 90/100 for performance, with an estimated load time of 0.4 s. A visit emits an estimated 0.19 g of CO2 (grade A).

Performance

Page weight

  • HTML 516 KB
  • JavaScript 3.2 KB
  • CSS 57 B
Est. load
371 ms
Response
361 ms
Scripts / CSS
13 / 2

Carbon per visitA

A+ABCDEF

0.19 g CO2 per uncached view

Estimate from the Sustainable Web Design model. HTML, JavaScript and CSS only; images, video and fonts are not measured. Treat it as a lower bound for comparing pages, not an audit.

SEO & accessibility

lceda.cn scores 55/100 for SEO and 85/100 for accessibility, with 8 SEO issues to fix.

SEO
Accessibility

Heading structure

H13H22H32H40H53H60

3 H1s; one is the convention.

Image alt text

74%

42 images · 11 without alt text · 0 lazy-loaded

Links

  • Internal 21
  • External 25
  • Broken 20

SEO issues8

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues1

  • More than 20% of images are missing alt text

Technical details

Page metadata, social tags, crawl files and scan information.

Meta tags

Title
国产嘉立创EDA - 一个用心为中国人定制的电路板开发平台
Description
国产嘉立创EDA - 基于浏览器的免费电路板设计软件:在线绘制原理图、仿真、PCB制作，简单易用，功能强大，专为中国人设计。
Canonical
Language
zh-cn
Robots meta

Open Graph & Twitter

og:title
—
og:type
—
twitter:card
—
twitter:title
—

Crawl files

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

Structured data

No JSON-LD types declared.

Microdata items
0
RDFa items
0

Scan

Final URL
https://lceda.cn
HTTP status
200
Redirects
https://lceda.cn
Scanned
Aug 24, 2026, 1:23 PM

Own lceda.cn? Show your score

Add this badge to your site. It always shows the latest scan.

lceda.cn SiteGraph score badge
<a href="https://sitegraph.tech/site/lceda-cn"><img src="https://sitegraph.tech/badge/lceda-cn.svg" alt="lceda.cn on SiteGraph" width="190" height="20" /></a>

See something wrong on this report? Request a correction or ask for something to be removed.

Frequently asked questions about lceda.cn

What is lceda.cn?
lceda.cn is a website. It describes itself as “国产嘉立创EDA - 基于浏览器的免费电路板设计软件:在线绘制原理图、仿真、PCB制作，简单易用，功能强大，专为中国人设计。”.
Is lceda.cn secure?
lceda.cn uses TLS 1.3 with a certificate valid for 87 more days and sets 1 of 6 recommended security headers.
Is lceda.cn protected against email spoofing?
lceda.cn scores D for email security, with SPF and DMARC policy “quarantine”.
How does lceda.cn compare with similar sites?
lceda.cn scores higher overall than 23% of the 163,243 sites we have scanned.
What is lceda.cn's overall score?
lceda.cn has an overall SiteGraph score of 75/100, combining SEO (55), performance (90), security (75) and accessibility (85).