vishay.com
Vishay Intertechnology: Passives & Discrete Semiconductors
Last scanned Jul 30, 2026, 11:00 AM · 6 views
Overall score
Fair
Summary
Vishay electronic component solutions - MOSFETs, ICs, Diodes & Rectifiers, Optoelectronics, Resistors, Sensors, Inductors, Custom Magnetics, and Capacitors. This website uses Next.js. SEO is good (75/100) and accessibility is excellent (90/100). Security scores poor (45/100) and performance good (80/100). Top issue: No structured data (JSON-LD) found.
Vishay electronic component solutions - MOSFETs, ICs, Diodes & Rectifiers, Optoelectronics, Resistors, Sensors, Inductors, Custom Magnetics, and Capacitors
Top issues to fix
8 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+2 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
1.40 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-2 overall since Jul 22, 2026
- Overall
- 72
- SEO
- 75
- Security
- 45
- Performance
- 80
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Vishay Intertechnology: Passives & Discrete Semiconductors
- Description
- Vishay electronic component solutions - MOSFETs, ICs, Diodes & Rectifiers, Optoelectronics, Resistors, Sensors, Inductors, Custom Magnetics, and Capacitors
- Canonical
- https://www.vishay.com/
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
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
- DigiCert Inc
- Subject
- www.vishay.com
- Valid from
- May 27, 2026
- Valid to
- Dec 11, 2026
- Days until expiry
- 134
- SAN domains
- www.vishay.com, applications.vishay.com, calculators.vishay.com, company.vishay.com, decoder.vishay.com, design.vishay.com, distributors.vishay.com, feeds.vishay.com, files.vishay.com, hr.vishay.com, ir.vishay.com, marketing.vishay.com, mft.vishay.com, my.vishay.com, new.vishay.com, news.vishay.com, owa.vishay.com, partners.vishay.com, pcn.vishay.com, quality.vishay.com, sales.vishay.com, salesportal.vishay.com, support.vishay.com, thermasim.vishay.com, tools.vishay.com, training.vishay.com, university.vishay.com, vishay.com, vpn.vishay.com, www.angstrohm.com, www.aztronic.cn, www.aztronic.com.cn, www.aztronic.in, www.aztronic.jp, www.bccomponents.com, www.bccomponents.jp, www.beyschlag.cn, www.beyschlag.com, www.beyschlag.com.cn, www.beyschlag.jp, www.cera-mite.cn, www.cera-mite.com.cn, www.cera-mite.jp, www.ceramite.cn, www.ceramite.com, www.ceramite.com.cn, www.ceramite.jp, www.custominductors.com, www.custommagnetics.net, www.draloric.com, www.draloric.jp, www.electro-films.cn, www.electro-films.com.cn, www.electro-films.in, www.electro-films.jp, www.esta.in, www.gensemi.cn, www.gensemi.com, www.gensemi.com.cn, www.gensemi.jp, www.vishay.hk, www.vishay.in, www.vishay.jp, www.vishay.net, www.vishay.tw, wwwtest.vishay.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
118 internal · 21 external · 20 broken
Images
58 total · 3 missing alt
Scripts / Styles
30 scripts · 14 stylesheets
JS / CSS size
430 KB · 0 B
Page size
824 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://vishay.com
- Final URL
- https://www.vishay.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.38 s
- HTML size
- 824 KB
- Redirect chain
- https://vishay.com → https://www.vishay.com/
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Frequently asked questions
- What technology does vishay.com use?
- vishay.com is built with Next.js, jQuery, Nginx.
- Is vishay.com secure (HTTPS)?
- Yes. vishay.com uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Dec 11, 2026.
- Who hosts vishay.com?
- Hosting provider information for vishay.com is not available yet.
- What is vishay.com's SEO score?
- vishay.com scored 75/100 for SEO in the latest analysis (fair).
- What is vishay.com's overall website score?
- vishay.com has an overall SiteGraph score of 72/100, combining SEO, performance, security, and accessibility.
- Has vishay.com's score changed over time?
- vishay.com's overall score has declined by 2 points (from 74 to 72) since Jul 22, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card