bn.pt
Biblioteca Nacional de Portugal
Last scanned Aug 4, 2026, 3:00 AM · 14 views
Overall score
Fair
Summary
Biblioteca Nacional de Portugal. This website uses PHP. SEO is fair (60/100) and accessibility is good (85/100). Security scores poor (35/100) and performance good (80/100). Top issue: Missing canonical link.
Biblioteca Nacional de Portugal
Top issues to fix
13 issues found · 4 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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 viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Slow estimated load (4.1s)
PerformanceUse a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
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.
+7 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
4.13 s
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 64
- SEO
- 60
- Security
- 35
- Performance
- 80
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
Biblioteca Nacional de Portugal
Meta tags
- Title
- Biblioteca Nacional de Portugal
- Description
- Biblioteca Nacional de Portugal
- Canonical
- Language
- pt-pt
- Charset
- utf-8
- Viewport
- Robots meta
- index, follow
- 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
- Sectigo Limited
- Subject
- *.bnportugal.gov.pt
- Valid from
- Nov 14, 2025
- Valid to
- Dec 11, 2026
- Days until expiry
- 129
- SAN domains
- *.bnportugal.gov.pt, bnportugal.gov.pt
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
42 internal · 12 external · 20 broken
Images
11 total · 0 missing alt
Scripts / Styles
6 scripts · 3 stylesheets
JS / CSS size
148 B · 0 B
Page size
19.9 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing viewport meta tag
Scan details
- Requested URL
- https://bn.pt
- Final URL
- https://www.bnportugal.gov.pt/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 4.13 s
- HTML size
- 19.9 KB
- Redirect chain
- https://bn.pt → https://www.bnportugal.gov.pt/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does bn.pt use?
- bn.pt is built with PHP, Joomla, Google Analytics.
- Is bn.pt secure (HTTPS)?
- Yes. bn.pt uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Dec 11, 2026.
- Who hosts bn.pt?
- Hosting provider information for bn.pt is not available yet.
- What is bn.pt's SEO score?
- bn.pt scored 60/100 for SEO in the latest analysis (fair).
- What is bn.pt's overall website score?
- bn.pt has an overall SiteGraph score of 64/100, combining SEO, performance, security, and accessibility.
- Has bn.pt's score changed over time?
- bn.pt's overall score has declined by 3 points (from 67 to 64) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card