an.gov.br

https://an.gov.br· First analyzed 19 May 2026· Updated 19 May 2026

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an.gov.br

Mobile

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Hosting Provider

DataCorpore Serviços e Representações

IP Address

177.47.113.202

Site Location

🇧🇷 Brazilvia tld

Server Location

🇧🇷 Rio de Janeiro, Brazil

ASN

AS28271

Organization

DataCorpore Serviços e Representações

CDN

Nameservers

naus.arquivonacional.gov.br.bellatrix.arquivonacional.gov.br.procyon.arquivonacional.gov.br.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.7 s10%

Speed Index

3.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.8 MB

79 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

DataCorpore Serviços e Representações

CDN

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Matomo

UI Components

CSS Frameworks

Icon Libraries

Tag Managers

Advertising

SEO Analysis

C69/100

Meta Tags7/15

Content11/12

Headings8/8

Technical18/21

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

an.gov.bran.gov.br

Página inicial — Arquivo Nacional

No description available for this page.

Title Length33 chars

Recommended: 50-60 chars (~187px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (14/27) — critical for accessibility and SEO

6 issues found

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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.

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AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

6/25

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:8%

Words:3,884

Token eff.:Poor Structure

Depth:2/5

Structured Data

2 JSON-LD

Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary

Descriptive Headingsavg 4.6w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

82/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

8/15

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.

15/100

609 mg

CO₂e / view

4.8 MB

Page Weight

15%

Cleaner Than

New Visitor

696 mg

Returning (cached)

348 mg

Annual (10K/mo)

73.1 kg

Emission Segments

Data Center

136 mg

Network

146 mg

Device

327 mg

Resource Breakdown

JavaScript

532.4 KB

Images

3.5 MB

CSS

735.5 KB

HTML

28.1 KB

Other

8.9 KB

Green Hosting Not Verified

DataCorpore Serviços e Representações

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

81%Very Good

Interactive

HTTPS

No WAF

55d

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

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-language

pt-br

content-security-policy

frame-ancestors 'self';

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

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

Domain Information

an.gov.br

Domain Age

16y 10m

Created

24.07.2009

Last Updated

29.01.2021

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

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...

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Typography & Readability

rawline

WCAG AAA

68/100

Readability

/30

13/30

12px · LH 1.50

Hierarchy

/20

19/20

3x ratio · ✓ H1→H6

WCAG

/25

23/25

7.2:1 min contrast

Performance

/25

13/25

1 font · 5 req

Heading Font

rawline

Sans36px

Body Font

rawline

Sans12px

Contrast Ratio

7.2:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

left aligned

36px

22px

12px

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

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

❌ 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).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

11 unique colors

5.56:1 AA Light

#ffffff

Background· 50.3%

#74646a

Other· 3.6%

#00a300

Primary· 0%

#d4e74b

Accent· 8.3%

#334765

Secondary· 7%

#0e1838

Accent· 6.3%

#3b2f45

Secondary· 4%

#b0b69a

Secondary· 4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

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

Website Identity

an.gov.br

16 years old

Location detected: 🇧🇷 Brazilvia tld

📧 Microsoft 365pt-br

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Last analyzed: 19 May 2026 at 04:06

Historical Analysis & Change Tracking