nucleoexpert.com

https://nucleoexpert.com· First analyzed 13 May 2026· Updated 13 May 2026

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nucleoexpert.com

Mobile

Sponsored

Hosting Provider

NEXTNET

IP Address

217.196.57.229

Site Location

🇧🇷 Brazilvia ip

Server Location

🇧🇷 São Paulo, Brazil

ASN

AS47583

Server

LiteSpeed

CDN

Cloudflare

WAF

Cloudflare

Nameservers

micah.ns.cloudflare.com.beth.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3 MB

100 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Hello Elementorv3.4.7

by Elementor Team

View Theme

Technology Stack

12 Technologies Detected

Plugins

Libraries

Icon Libraries

Font Awesome Material Icons

Other

CSS Frameworks

Web Servers

Languages

SEO Analysis

B79/100

Meta Tags9/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T7/7

Images3/7

Links2/5

URL5/5

Social5/5

Freshness4/4

Mobile4/4

Indexability3/3

nucleoexpert.comnucleoexpert.com

NucleoExpert © - Alex Vargas

Alex Vargas é empreendedor digital há mais de 17 anos. Desenvolveu dezenas de negócios na Internet. É criador de diversos treinamentos online, com destaque

Title Length28 chars

Recommended: 50-60 chars (~169px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (18/18) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

17/100

Poor

4 13

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

Sponsored

AI & LLM Readiness

C62/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

13/25

Citation

19/25

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:5%

Words:1,435

Token eff.:Optimal

Sections/1K:16.7

Depth:1/5

Structured Data

6 JSON-LD

Article×1.2Person×1.3Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary137w

Descriptive Headingsavg 13w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (6)

AI readiness recommendation preview...

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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.

83/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

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

13/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•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.

53/100

306 mg

CO₂e / view

3.0 MB

Page Weight

30%

Cleaner Than

New Visitor

349 mg

Returning (cached)

175 mg

Annual (10K/mo)

36.7 kg

Emission Segments

Data Center

15 mg

Network

90 mg

Device

201 mg

Resource Breakdown

JavaScript

130.2 KB

Images

1.9 MB

CSS

607.2 KB

Fonts

252.3 KB

HTML

40.8 KB

Green Hosting Verified

Hostinger

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

41%Poor

Interactive

HTTPS

No WAF

40d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

25.03.2026

Valid Until

23.06.2026

Subject Alternative Names (2)

nucleoexpert.comwww.nucleoexpert.com

SHA-256 Fingerprint

39:9B:A7:CA:64:9B:15:AC:80:2D:00:8F:32:BD:5F:6D:45:02:A5:21...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

content-encoding

⚡ Brotli(br)

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

date

Wed, 13 May 2026 01:15:04 GMT

link

<https://nucleoexpert.com/wp-json/>; rel="https://api.w.org/...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt4.aspmx.l.google.com

alt3.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

nucleoexpert.com

Domain Age

11y 3m

Created

21.01.2015

Expires

21.01.2027

Last Updated

27.10.2025

Registrar

Tucows Domains Inc.

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.

74/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Exo 2 + Exo 2 Alex

WCAG Partial

54/100

Readability

/30

24/30

16px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

9/25

System fonts

Heading Font

Exo 2

Sans

Body Font

Exo 2 Alex

Sans16px

Contrast Ratio

1:1

28 issues

Reading Comfort

~43 CPL

Narrow lines

29px

39px

16px

Perfect Fourth

Scale

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

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

⚠️ Partial contrast: 28 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

⚠️ High font requests: 13 font files loaded. Consider variable fonts or subsetting.

Buy on MyFonts

Color Palette

6 unique colors

Light

#000f26

Accent· 57.49999999999999%

#020408

Primary· 13.5%

#4988d3

Accent· 9.2%

#262531

Text· 9.2%

#161f4b

Accent· 6.5%

#353c4c

Secondary· 4.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nucleoexpert.com(19)

Website Identity

Alex Vargas

Organization

Alex Vargas é empreendedor digital há mais de 17 anos. Desenvolveu dezenas de negócios na Internet. É criador de diversos treinamentos online, com destaque

nucleoexpert.com

11 years old

Location detected: 🇧🇷 Brazilvia ip

Tucows Domains Inc.📧 Google Workspacept-BR

Social Profiles

Facebook Instagram

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Last analyzed: 13 May 2026 at 01:15

Historical Analysis & Change Tracking