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vlibras.gov.br

https://vlibras.gov.br· First analyzed 28 May 2026· Updated 28 May 2026
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vlibras.gov.br
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

56.126.156.59

Site Location

🇧🇷 Brazilvia tld

Server Location

🇧🇷 São Paulo, Brazil

ASN

AS16509

Organization

AWS EC2 (sa-east-1)

CDN

CDN

Nameservers

ns-1701.awsdns-20.co.uk.ns-339.awsdns-42.com.ns-698.awsdns-23.net.ns-1219.awsdns-24.org.

Performance

75

Core Web Vitals

Weight

First Contentful Paint
3.2 s10%
Speed Index
4.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.6 MB
100 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

11 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMatomo

CSS Frameworks

2
Tailwind CSS
Ant Design

Other

1
D3.js

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Advertising

1
Google Ads

SEO Analysis

C66/100
19
6
1
Meta Tags4/15
Content10/12
Headings6/8
Technical18/21
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
V
vlibras.gov.brvlibras.gov.br

VLibras — Governo Digital

No description available for this page.

Title Length25 chars

Recommended: 50-60 chars (~149px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

7 issues found

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Local SEO

Local Search Readiness

15/100
Poor
4 12 1

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

D44/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
7/25
Citation
13/25

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
def. listsnav
Text ratio:4%
Words:4,635
Token eff.:Poor Structure
Depth:2/5

Structured Data

3 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary1081w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
A
84/100
14
Passed
1
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
5/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
43/100
D
272 mg
CO₂e / view
2.6 MB
Page Weight
30%
Cleaner Than
New Visitor
311 mg
vs
Returning (cached)
155 mg
Annual (10K/mo)
32.6 kg
Emission Segments
Data Center
13 mg
Network
80 mg
Device
179 mg
Resource Breakdown
JavaScript
533.4 KB
Images
1011.9 KB
CSS
834.6 KB
HTML
301.5 KB
Other
8.9 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
6 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

45d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

11.06.2025

Valid Until

13.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

gov.brwww.gov.br

SHA-256 Fingerprint

44:8E:73:8A:69:3A:4D:2D:91:9B:AB:9C:78:B9:DB:8B:12:3E:93:32...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
0
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-language
pt-br
content-security-policy
frame-ancestors 'self';
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

vlibras.gov.br

Domain Age
10y 5m

Created

04.12.2015

Last Updated

12.04.2023

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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.
B
79/100
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
width=device-width, initial-scale=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

rawline

WCAG AAA
76/100
Readability
/30
25/30

16px · LH 1.75

Hierarchy
/20
17/20

2.25x ratio

WCAG
/25
21/25

7.33:1 min contrast

Performance
/25
13/25

1 font · 6 req

Heading Font

rawline

Sans36px

Body Font

rawline

Sans16px

Contrast Ratio

7.33:1

WCAG AAA (≥7:1)

Reading Comfort

~37 CPL

Narrow lines
36px
h1
36px
h2
22px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.3:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

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Color Palette

5 unique colors
Light
#ffffff
Background· 69.60000000000001%
#303f5c
Secondary· 12.7%
#00a300
Primary· 0%
#ffca00
Accent· 9.5%
#748695
Secondary· 3.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
0
Async
3
Defer

Top Script Sources

gov.br(18)cdnjs.cloudflare.com(1)barra.sistema.gov.br(1)

Website Identity

vlibras.gov.br

10 years old
Location detected: 🇧🇷 Brazilvia tld
pt-br

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Last analyzed: 28 May 2026 at 17:30

Historical Analysis & Change Tracking