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cnen.gov.br

https://cnen.gov.br· First analyzed 11 May 2026· Updated 11 May 2026
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cnen.gov.br
Desktop screenshot of cnen.gov.br
Mobile screenshot of cnen.gov.br
Mobile

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Hosting Provider

Fundação Carlos Chagas Filho de Amparo a Pesquisa

IP Address

200.156.7.136

Site Location

🇧🇷 Brazilvia tld

Server Location

🇧🇷 Rio de Janeiro, Brazil

ASN

AS2715

Organization

Fundação Carlos Chagas Filho de Amparo a Pesquisa

CDN

CDN

Nameservers

guanabara.rederio.br.nsc.cnen.gov.br.nsa.cnen.gov.br.nsb.cnen.gov.br.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
3.6 s10%
Speed Index
4.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
11 MB
74 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Fundação Carlos Chagas Filho de Amparo a Pesquisa
CDN
CDN

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Facebook Pixel

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

SEO Analysis

B72/100
22
4
2
Meta Tags4/15
Content12/12
Headings6/8
Technical20/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social4/5
Freshness2/4
Mobile4/4
Indexability3/3
C
cnen.gov.brcnen.gov.br

CNEN: Tecnologia nuclear para uma vida melhor — Comissão Nacional d...

No description available for this page.

Title truncated.
Title Length84 chars

Recommended: 50-60 chars (~505px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Title is too long (84 chars, ~505px). Will be truncated in search results.
  • • Missing meta description — important for click-through rates in SERPs

6 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

58 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100
Poor
3 13 1

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

Sponsored

AI & LLM Readiness

D53/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
6/25
Citation
17/25

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:6%
Words:1,922
Token eff.:Optimal
Depth:2/5

Structured Data

2 JSON-LD
Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary1228w
Descriptive Headingsavg 12.8w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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
85/100
14
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
8/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
15/100
F
1.40 g
CO₂e / view
11.0 MB
Page Weight
5%
Cleaner Than
New Visitor
1.60 g
vs
Returning (cached)
798 mg
Annual (10K/mo)
167.5 kg
Emission Segments
Data Center
312 mg
Network
335 mg
Device
749 mg
Resource Breakdown
JavaScript
525.3 KB
Images
9.8 MB
CSS
735.3 KB
HTML
28.4 KB
Green Hosting Not Verified
Fundação Carlos Chagas Filho de Amparo a Pesquisa
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

63d

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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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
age
0
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-language
pt-br
content-length
28800
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

cnen-gov-br.mail.protection.outlook.com

Domain Information

cnen.gov.br

Domain Age
30y 3m

Created

16.02.1996

Last Updated

16.03.2022

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected

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
72/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

rawline

WCAG AAA
68/100
Readability
/30
19/30

16px · LH 1.75

Hierarchy
/20
17/20

2.25x ratio

WCAG
/25
21/25

7.2:1 min contrast

Performance
/25
11/25

1 font · 5 req

Heading Font

rawline

Sans36px

Body Font

rawline

Sans16px

Contrast Ratio

7.2:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

left aligned
36px
h1
20px
h2
16px
p

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

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.2:1).

⚠️ 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.

Buy on MyFontsFlesch 0

Color Palette

8 unique colors
4.07:1 AA Large Light
#ffffff
Background· 51.4%
#877c74
Secondary· 3.2%
#00a300
Primary· 0%
#011334
Accent· 13.5%
#1a2841
Secondary· 5.4%
#dce0e6
Secondary· 3.1%
#cfd1bf
Secondary· 2.6%

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
4
Defer

Top Script Sources

gov.br(17)cdnjs.cloudflare.com(1)barra.sistema.gov.br(1)local(1)

Website Identity

cnen.gov.br

30 years old
Location detected: 🇧🇷 Brazilvia tld
📧 Microsoft 365pt-br

Social Profiles

FacebookX (Twitter)

Sponsored

Last analyzed: 11 May 2026 at 06:17

Historical Analysis & Change Tracking