vishay.com
Vishay Intertechnology: Passives & Discrete Semiconductors
Last scanned Jul 22, 2026, 8:14 PM
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 hosted on AKAMAI-AS - Akamai Technologies, Inc., US. SEO is good (75/100) and accessibility is excellent (100/100). Security scores poor (45/100) and performance good (80/100). Top issue: Multiple H1 headings found.
Vishay electronic component solutions - MOSFETs, ICs, Diodes & Rectifiers, Optoelectronics, Resistors, Sensors, Inductors, Custom Magnetics, and Capacitors
- United States
- Hosted on AKAMAI-AS - Akamai Technologies, Inc., US
Top issues to fix
6 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.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
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.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
4 issue(s) found
Performance
1.30 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
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
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AKAMAI-AS - Akamai Technologies, Inc., US
- CDN provider
- —
- IP address
- 23.47.239.36
- ASN
- AS16625 (AKAMAI-AS - Akamai Technologies, Inc., US)
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
- 141
- 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 3 · H2 3 · H3 6
Links
119 internal · 22 external · 0 broken
Images
74 total · 3 missing alt
Scripts / Styles
32 scripts · 14 stylesheets
JS / CSS size
764 KB · 115 KB
Page size
824 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 529
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Multiple H1 headings found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://vishay.com
- Final URL
- https://www.vishay.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.28 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?
- vishay.com is hosted on AKAMAI-AS - Akamai Technologies, Inc., US.
- 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 74/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card