clontech.com
takarabio.com | 520: Web server is returning an unknown error
Last scanned Aug 4, 2026, 10:00 PM · 10 views
Overall score
Great
Summary
This website is hosted on Cloudflare. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
- United States
- Hosted on Cloudflare
Top issues to fix
7 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+1 more issue — details in the sections below.
SEO
5 issue(s) found
Performance
1.80 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 27, 2026
- Overall
- 82
- SEO
- 65
- Security
- 80
- Performance
- 90
- Accessibility
- 100
Meta tags
- Title
- takarabio.com | 520: Web server is returning an unknown error
- Description
- Canonical
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- noindex, nofollow
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.18.9.18
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.takarabio.com
- Valid from
- Jun 24, 2026
- Valid to
- Sep 23, 2026
- Days until expiry
- 49
- SAN domains
- www.takarabio.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyEnabled
Compression: gzip · 4 cookie(s) observed
Content & assets
Headings
H1 1 · H2 2 · H3 5
Links
0 internal · 2 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
1 scripts · 1 stylesheets
JS / CSS size
375 B · 0 B
Page size
156 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 13
- sitemap.xml
- Found
- URLs in sitemap
- 2535
SEO issues
- Title longer than 60 characters
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://clontech.com
- Final URL
- https://www.takarabio.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.79 s
- HTML size
- 156 KB
- Redirect chain
- https://clontech.com → https://www.takarabio.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does clontech.com use?
- We did not detect any specific technologies for clontech.com in the latest scan.
- Is clontech.com secure (HTTPS)?
- Yes. clontech.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 23, 2026.
- Who hosts clontech.com?
- clontech.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is clontech.com's SEO score?
- clontech.com scored 65/100 for SEO in the latest analysis (fair).
- What is clontech.com's overall website score?
- clontech.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
- Has clontech.com's score changed over time?
- clontech.com's overall score has declined by 3 points (from 85 to 82) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card