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sbn.it

https://sbn.it· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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sbn.it
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Mobile

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Hosting Provider

Oracle Cloud
oracle.com/cloud

IP Address

158.180.168.31

Site Location

🇮🇹 Italyvia tld

Server Location

🇮🇹 Rome, Italy

ASN

AS54253

Organization

Oracle Corporation

Server

Nginx

Nameservers

dns1.sbn.it.dns2.sbn.it.dns3.sbn.it.

Performance

89

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
2.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
84 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Oracle Cloud

Technology Stack

13 Technologies Detected

Analytics

3
Google Analytics
MatomoSegment

Libraries

2
jQuery
Moment.js

CSS Frameworks

2
Bootstrapv4.3.1
Tailwind CSS

Icon Libraries

2
Font AwesomeMaterial Icons

Frameworks

1
Reactv16.12.0

Other

1
Highcharts

Web Servers

1
Nginx

Security

1
reCAPTCHA

SEO Analysis

C61/100
19
6
1
Meta Tags5/15
Content8/12
Headings6/8
Technical19/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sbn.itsbn.it

Home - OPAC SBN

Catalogo del Servizio Bibliotecario Nazionale

Title Length15 chars

Recommended: 50-60 chars (~98px / 580px)

Description Length45 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (11/17) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

33 URLs

33 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

12/100
Poor
4 12 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D45/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
14/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:2%
Words:506
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary106w
Descriptive Headingsavg 2.8w
Canonical URL
Open Graph3/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
D
53/100
11
Passed
6
Critical
3
Warnings
Images & Alt Text
3/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
2/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
31/100
C
206 mg
CO₂e / view
1.6 MB
Page Weight
60%
Cleaner Than
New Visitor
235 mg
vs
Returning (cached)
118 mg
Annual (10K/mo)
24.7 kg
Emission Segments
Data Center
46 mg
Network
49 mg
Device
111 mg
Resource Breakdown
JavaScript
1.2 MB
Images
161.3 KB
CSS
202.4 KB
HTML
31.8 KB
Other
45.8 KB
Green Hosting Not Verified
Oracle Cloud
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

65d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

ZeroSSL GmbH

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.04.2026

Valid Until

30.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

sbn.it*.sbn.it

SHA-256 Fingerprint

9D:91:5A:11:BD:68:59:9E:45:1A:A5:00:71:F0:68:B8:B0:5C:67:BD...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-cache, no-store, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html;charset=UTF-8
date
Sun, 26 Apr 2026 10:36:29 GMT
expires
Thu, 01 Jan 1970 00:00:00 GMT
liferay-portal
Liferay Community Edition Portal 7.4.1 CE GA2 (Cavanaugh / B...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (1)

mail.sbn.it

Domain Information

sbn.it

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
C
66/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
initial-scale=1.0, width=device-width
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Montserrat

WCAG Partial
60/100
Readability
/30
19/30

12px · LH 1.50

Hierarchy
/20
15/20

2.67x ratio

WCAG
/25
13/25

1.4:1 min contrast

Performance
/25
13/25

1 font · 1 req

Heading Font

Montserrat

Sans32px

Body Font

Montserrat

Sans12px

Contrast Ratio

1.4:1

10 issues

Reading Comfort

~52 CPL

Optimal (45–75)
32px
h1
32px
h2
28px
h3
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.4:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

Buy on MyFontsFlesch 0

Color Palette

5 unique colors
Light
#e7e6e4
Other· 39.4%
#faf8f9
Background· 38.900000000000006%
#f37c04
Primary· 13.3%
#d4c0ac
Secondary· 4.5%
#8f5823
Accent· 4.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
6
Async
0
Defer

Top Script Sources

local(19)gstatic.com(1)

Website Identity

sbn.it

ic-cu@pec.cultura.gov.it
Location detected: 🇮🇹 Italyvia tld
it-IT

Social Profiles

FacebookYouTube

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Last analyzed: 26 Apr 2026 at 10:36

Historical Analysis & Change Tracking