What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

ufrn.br

https://ufrn.br· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

ufrn.br

Sponsored

Hosting Provider

Universidade Federal Do RIO Grande Do Norte

IP Address

177.20.144.66

Server Location

🇧🇷 Natal, Brazil

ASN

AS262857

Organization

Universidade Federal Do RIO Grande Do Norte

Nameservers

ns1.ufrn.br.ns2.ufrn.br.

Performance

Page Speed

1.8 MB

54 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

Universidade Federal Do RIO Grande Do Norte

Technology Stack

11 Technologies Detected

Libraries

jQuery

Moment.js

UI Components

Slick Carousel Lightbox

CSS Frameworks

Analytics

Meta Frameworks

Icon Libraries

Social

SEO Analysis

D47/100

ufrn.brufrn.br

Portal da UFRN

Portal da Universidade Federal do Rio Grande do Norte - UFRN

Title Length14 chars

Recommended: 50-60 chars

Description Length60 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (15/20)

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

78d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.02.2026

Valid Until

09.05.2026

Subject Alternative Names (1)

ufrn.br

SHA-256 Fingerprint

C8:87:BD:40:DC:F8:85:D9:E0:D3:28:C1:3F:E6:98:87:BD:5C:6D:33...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-length

31482

content-type

text/html

date

Fri, 20 Feb 2026 01:08:33 GMT

etag

"69979e5a-7afa"

last-modified

Thu, 19 Feb 2026 23:35:54 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (8)

dmx1.info.ufrn.br

dmx.info.ufrn.br

ALT3.ASPMX.L.GOOGLE.COM

dmx2.info.ufrn.br

+4 more

Domain Information

ufrn.br

Domain Age

30y 1m

Created

01.01.1996

Last Updated

06.10.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

TypoPRO Liberation Sans

46/100

Readability

/30

25/40

16px · LH 1.15

Hierarchy

/20

8/25

0.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

TypoPRO Liberation Sans

Sans12px

Body Font

TypoPRO Liberation Sans

Sans16px

Contrast Ratio

Reading Comfort

~169 CPL

Needs attention

12px

18px

16px

Perfect Fifth

Scale

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

⚠️ Tight line spacing (1.15). Consider 1.4-1.6 for better readability.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

AddThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

node_modules(13)resources(2)google-analytics.com(1)s7.addthis.com(1)barra.brasil.gov.br(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 20 Feb 2026 at 01:09

Historical Analysis & Change Tracking