denon.com
Pure Sound, Total Focus
Last scanned Jul 29, 2026, 10:00 PM · 9 views
Overall score
Great
Summary
Denon is a leading manufacturer of high-quality home audio, home theatre, and personal audio products. This website uses Cloudflare Analytics behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores good (80/100) and performance excellent (100/100). Top issue: No H1 heading found.
Denon is a leading manufacturer of high-quality home audio, home theatre, and personal audio products. Shop our range of speakers, receivers, and more.
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
4 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
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.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
466 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-1 overall since Jul 22, 2026
- Overall
- 87
- SEO
- 80
- Security
- 80
- Performance
- 100
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Denon is a leading manufacturer of high-quality home audio, home theatre, and personal audio products. Shop our range of speakers, receivers, and more.
Contact
Email, phone, and address published on this site's own pages.
- Phone
- +61 (03) 8542 1144
Meta tags
- Title
- Pure Sound, Total Focus
- Description
- Denon is a leading manufacturer of high-quality home audio, home theatre, and personal audio products. Shop our range of speakers, receivers, and more.
- Canonical
- https://www.denon.com/homepage
- 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
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- DigiCert Inc
- Subject
- soundunited.com
- Valid from
- Dec 18, 2025
- Valid to
- Dec 17, 2026
- Days until expiry
- 141
- SAN domains
- soundunited.com, *.bostonacoustics.com, *.bowerswilkins.com, *.bowerswilkins.cn, *.classeaudio.com, *.definitivetechnology.com, *.denon.com, *.dmglobal.com, *.dmh-global.com, *.marantz.com, *.polkaudio.com, *.soundunited.com, bostonacoustics.com, bowerswilkins.com, bowerswilkins.cn, classeaudio.com, definitivetechnology.com, denon.com, dmglobal.com, dmh-global.com, marantz.com, polkaudio.com, *.suinternal.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 6 cookie(s) observed
Content & assets
Headings
H1 0 · H2 23 · H3 1
Links
58 internal · 17 external · 20 broken
Images
35 total · 0 missing alt
Scripts / Styles
33 scripts · 15 stylesheets
JS / CSS size
13.7 KB · 4.5 KB
Page size
155 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://denon.com
- Final URL
- https://www.denon.com/homepage
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 463 ms
- HTML size
- 155 KB
- Redirect chain
- https://denon.com → https://www.denon.com/ → https://www.denon.com/homepage
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Frequently asked questions
- What technology does denon.com use?
- denon.com is built with Cloudflare Analytics.
- Is denon.com secure (HTTPS)?
- Yes. denon.com uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Dec 17, 2026.
- Who hosts denon.com?
- Hosting provider information for denon.com is not available yet.
- What is denon.com's SEO score?
- denon.com scored 80/100 for SEO in the latest analysis (great).
- What is denon.com's overall website score?
- denon.com has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
- Has denon.com's score changed over time?
- denon.com's overall score has declined by 1 point (from 88 to 87) since Jul 22, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card