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cert.br

https://cert.br· First analyzed 07 May 2026· Updated 07 May 2026
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cert.br
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Mobile

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Hosting Provider

Núcleo de Inf. e Coord. do Ponto BR - NIC.BR

IP Address

200.160.7.7

Site Location

🇧🇷 Brazilvia tld

Server Location

🇧🇷 São Paulo, Brazil

ASN

AS22548

Organization

Núcleo de Inf. e Coord. do Ponto BR - NIC.BR

Server

Nginx

Nameservers

woq.cert.br.ns.dns.br.ns2.dns.br.

Performance

95

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Núcleo de Inf. e Coord. do Ponto BR - NIC.BR

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

2
Font AwesomeMaterial Icons

Web Servers

1
Nginx

SEO Analysis

C62/100
17
8
1
Meta Tags7/15
Content12/12
Headings6/8
Technical13/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
cert.brcert.br

CERT.br – Centro de Estudos, Resposta e Tratamento de Incidentes de...

CERT.br – Centro de Estudos, Resposta e Tratamento de Incidentes de Segurança no Brasil

Title truncated.
Title Length87 chars

Recommended: 50-60 chars (~529px / 580px)

Description Length87 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (87 chars, ~529px). Will be truncated in search results.

9 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

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

Sponsored

AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
15/25
Schema Data
0/25
Citation
11/25

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
code blocksnavheader/footer
Text ratio:21%
Words:1,331
Token eff.:Optimal
Sections/1K:10.5
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary44w
Descriptive Headingsavg 4w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
B
79/100
11
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
2/15
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.
39/100
B
135 mg
CO₂e / view
1.1 MB
Page Weight
70%
Cleaner Than
New Visitor
154 mg
vs
Returning (cached)
77 mg
Annual (10K/mo)
16.2 kg
Emission Segments
Data Center
30 mg
Network
32 mg
Device
72 mg
Resource Breakdown
Images
281.0 KB
CSS
757.5 KB
HTML
51.9 KB
Green Hosting Not Verified
Núcleo de Inf. e Coord. do Ponto BR - NIC.BR
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

98%Excellent
Static / Informational

HTTPS

No WAF

337d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.03.2026

Valid Until

09.04.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.cert.brcert.br

SHA-256 Fingerprint

9F:9B:17:77:F0:90:22:26:00:02:0A:33:DC:C6:86:D0:A1:03:60:AA...

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-length
52848
content-security-policy
default-src 'none'; base-uri 'self'; font-src 'self'; form-a...
content-type
text/html; charset=utf-8
date
Thu, 07 May 2026 06:07:06 GMT
etag
"69cbeb66-ce70"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

woq.cert.br

Domain Information

cert.br

Domain Age
21y 1m

Created

22.03.2005

Last Updated

07.06.2018

DNSSEC
Not Enabled

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
63/100
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

Roboto

WCAG Partial
67/100
Readability
/30
19/30

15px · LH 1.43

Hierarchy
/20
16/20

3.8x ratio

WCAG
/25
12/25

1:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Roboto

Sans57px

Body Font

Roboto

Sans15px

Contrast Ratio

1:1

9 issues

Reading Comfort

~38 CPL

Narrow lines
57px
h1
36px
h2
28px
h3
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 8/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

Flesch 9

Color Palette

4 unique colors
4.16:1 AA Large Light
#aaabaa
Other· 2.4%
#454546
Other· 1.4%
#f3f4f6
Primary· 94.7%

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

5 Resources

0
Scripts
5
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

cert.br

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

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Last analyzed: 07 May 2026 at 06:07

Historical Analysis & Change Tracking