What technology does 4devs.com.br use?

4devs.com.br is built with Google Analytics, Nginx.

Is 4devs.com.br secure (HTTPS)?

Yes. 4devs.com.br uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 26, 2026.

Who hosts 4devs.com.br?

Hosting provider information for 4devs.com.br is not available yet.

What is 4devs.com.br's SEO score?

4devs.com.br scored 75/100 for SEO in the latest analysis (fair).

What is 4devs.com.br's overall website score?

4devs.com.br has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

4devs.com.br

4Devs - Ferramentas Online Grátis

Last scanned Jul 26, 2026, 5:47 AM

Overall score

Great

Summary

Ferramentas online gratuitas, geradores de cpf, conta bancária, pessoas, cnpj, cep, rg, validadores, encoders e muitas outras úteis para programadores. This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.

Ferramentas online gratuitas, geradores de cpf, conta bancária, pessoas, cnpj, cep, rg, validadores, encoders e muitas outras úteis para programadores.

Top issues to fix

7 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEO
Add og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

4 issue(s) found

Performance

2.11 s

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Ferramentas online gratuitas, geradores de cpf, conta bancária, pessoas, cnpj, cep, rg, validadores, encoders e muitas outras úteis para programadores.

Meta tags

Title: 4Devs - Ferramentas Online Grátis
Description: Ferramentas online gratuitas, geradores de cpf, conta bancária, pessoas, cnpj, cep, rg, validadores, encoders e muitas outras úteis para programadores.
Canonical: https://www.4devs.com.br
Language: pt
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0, maximum-scale=2.0, user-scalable=1
Robots meta
Manifest: https://www.4devs.com.br/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

Google Analytics Nginx

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.2
Issuer: Let's Encrypt
Subject: 4devs.com.br
Valid from: Jun 28, 2026
Valid to: Sep 26, 2026
Days until expiry: 59
SAN domains: 4devs.com.br, www.4devs.com.br

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 6 · H3 0

Links

81 internal · 3 external · 20 broken

Images

15 total · 0 missing alt

Scripts / Styles

11 scripts · 0 stylesheets

JS / CSS size

20.1 KB · 76.6 KB

Page size

139 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://4devs.com.br
Final URL: https://www.4devs.com.br/
HTTP status: 200
HTTP version: HTTP/2
Response time: 2.11 s
HTML size: 139 KB
Redirect chain: https://4devs.com.br → https://www.4devs.com.br/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does 4devs.com.br use?: 4devs.com.br is built with Google Analytics, Nginx.
Is 4devs.com.br secure (HTTPS)?: Yes. 4devs.com.br uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 26, 2026.
Who hosts 4devs.com.br?: Hosting provider information for 4devs.com.br is not available yet.
What is 4devs.com.br's SEO score?: 4devs.com.br scored 75/100 for SEO in the latest analysis (fair).
What is 4devs.com.br's overall website score?: 4devs.com.br has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.