scielo.br
503 Backend fetch failed
Last scanned Jul 21, 2026, 12:33 PM · 2 views
Overall score
Fair
Top issues to fix
11 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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 viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+5 more issues — details in the sections below.
Summary
This website is hosted on CDN77 - Datacamp Limited, GB. SEO is fair (65/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
SEO
5 issue(s) found
Performance
463 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Meta tags
- Title
- 503 Backend fetch failed
- Description
- Canonical
- Language
- Charset
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- CDN77 - Datacamp Limited, GB
- CDN provider
- —
- IP address
- 156.146.56.162
- ASN
- AS60068 (CDN77 - Datacamp Limited, GB)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- GlobalSign nv-sa
- Subject
- *.scielo.br
- Valid from
- Oct 10, 2025
- Valid to
- Nov 11, 2026
- Days until expiry
- 113
- SAN domains
- *.scielo.br, scielo.br
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 1
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
0 scripts · 0 stylesheets
JS / CSS size
0 B · 0 B
Page size
2.1 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://scielo.br
- Final URL
- https://www.scielo.br/
- HTTP status
- 403
- HTTP version
- HTTP/2
- Response time
- 463 ms
- HTML size
- 2.1 KB
- Redirect chain
- https://scielo.br → https://www.scielo.br/
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Frequently asked questions
- What technology does scielo.br use?
- We did not detect any specific technologies for scielo.br in the latest scan.
- Is scielo.br secure (HTTPS)?
- Yes. scielo.br uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Nov 11, 2026.
- Who hosts scielo.br?
- scielo.br is hosted on CDN77 - Datacamp Limited, GB.
- What is scielo.br's SEO score?
- scielo.br scored 65/100 for SEO in the latest analysis (fair).
- What is scielo.br's overall website score?
- scielo.br has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card