What technology does jlc.com use?

jlc.com is built with Next.js, jQuery.

Is jlc.com secure (HTTPS)?

Yes. jlc.com uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Mar 18, 2027.

Hosting provider information for jlc.com is not available yet.

What is jlc.com's SEO score?

jlc.com scored 75/100 for SEO in the latest analysis (fair).

What is jlc.com's overall website score?

jlc.com has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.

jlc.com

嘉立创_PCB打样_SMT贴片_元器件_3D打印_嘉立创一站式制造业务官网

Last scanned Aug 24, 2026, 1:21 PM

Overall score

Great

Summary

专注PCB打样、批量制造和SMT贴片,PCB打样支持1-64层及HDI定制，免费打样，最快12小时出货；覆盖PCB设计和制造、SMT贴片、元器件、FA机械电气、CNC、3D打印，为820万+用户�… This website uses Next.js. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.

专注PCB打样、批量制造和SMT贴片,PCB打样支持1-64层及HDI定制，免费打样，最快12小时出货；覆盖PCB设计和制造、SMT贴片、元器件、FA机械电气、CNC、3D打印，为820万+用户提供一站式智造服务。

Top issues to fix

10 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
1 cookie 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.

+4 more issues — details in the sections below.

SEO

5 issue(s) found

Performance

613 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

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

Organization

Company details published in this site's own structured data.

Contact

Email, phone, and address published on this site's own pages.

Email: pr@jlc.com securities@sz-jlc.com

Meta tags

Title: 嘉立创_PCB打样_SMT贴片_元器件_3D打印_嘉立创一站式制造业务官网
Description: 专注PCB打样、批量制造和SMT贴片,PCB打样支持1-64层及HDI定制，免费打样，最快12小时出货；覆盖PCB设计和制造、SMT贴片、元器件、FA机械电气、CNC、3D打印，为820万+用户提供一站式智造服务。
Canonical: https://www.jlc.com
Language: zh-CN
Charset: utf-8
Viewport: width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Next.js jQuery

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Sectigo Limited
Subject: *.jlc.com
Valid from: Feb 24, 2026
Valid to: Mar 18, 2027
Days until expiry: 206
SAN domains: *.jlc.com, jlc.com

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 10 · H3 46

Links

62 internal · 93 external · 20 broken

Images

155 total · 1 missing alt

Scripts / Styles

59 scripts · 5 stylesheets

JS / CSS size

103 KB · 0 B

Page size

356 KB

Robots.txt & Sitemap

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

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://jlc.com
Final URL: https://www.jlc.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 606 ms
HTML size: 356 KB
Redirect chain: https://jlc.com → https://www.jlc.com/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does jlc.com use?: jlc.com is built with Next.js, jQuery.
Is jlc.com secure (HTTPS)?: Yes. jlc.com uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Mar 18, 2027.
Who hosts jlc.com?: Hosting provider information for jlc.com is not available yet.
What is jlc.com's SEO score?: jlc.com scored 75/100 for SEO in the latest analysis (fair).
What is jlc.com's overall website score?: jlc.com has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.