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bn.pt

Biblioteca Nacional de Portugal

Last scanned Jul 26, 2026, 3:19 PM

67

Overall score

Fair

Summary

Biblioteca Nacional de Portugal. This website uses PHP hosted on VODAFONE-PT - Vodafone Portugal - Communicacoes Pessoais S.A., PT. SEO is fair (70/100) 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

Portugal
Hosted on VODAFONE-PT - Vodafone Portugal - Communicacoes Pessoais S.A., PT

Top issues to fix

11 issues found · 4 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • Slow estimated load (7.7s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+5 more issues — details in the sections below.

70

SEO

4 issue(s) found

80

Performance

7.71 s

35

Security

HTTPS & header checks

85

Accessibility

2 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Biblioteca Nacional de Portugal

Facebook

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

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

PHPJoomlaGoogle Analytics

Hosting & CDN

CDN provider
—
IP address
213.30.22.141
ASN
AS12353 (VODAFONE-PT - Vodafone Portugal - Communicacoes Pessoais S.A., PT)

DNS records

TypeValue
A
  • 213.30.22.141
AAAA—
MX—
TXT—
NS—
CAA—
CNAME
  • hap.bn.pt
IPv6 supportNo

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
138
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 · 18 broken

Images

11 total · 0 missing alt

Scripts / Styles

6 scripts · 3 stylesheets

JS / CSS size

94.0 KB · 10.6 KB

Page size

20.1 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
730
sitemap.xml
Found
URLs in sitemap
140

SEO issues

  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

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
7.71 s
HTML size
20.1 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?
bn.pt is hosted on VODAFONE-PT - Vodafone Portugal - Communicacoes Pessoais S.A., PT.
What is bn.pt's SEO score?
bn.pt scored 70/100 for SEO in the latest analysis (fair).
What is bn.pt's overall website score?
bn.pt has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.