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

gonitro.com

https://gonitro.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

gonitro.com

Sponsored

Hosting Provider

HubSpot CMS

hubspot.com

IP Address

199.60.103.131

Server Location

🇺🇸 Cambridge, United States

ASN

AS209242

Organization

HubSpot, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sue.ns.cloudflare.com.pete.ns.cloudflare.com.

Performance

Page Speed

3.7 MB

120 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

HubSpot CMS

Technology Stack

8 Technologies Detected

Other

UI Components

CSS Frameworks

Fonts

Tag Managers

Marketing

Other

CDN

SEO Analysis

A+90/100

gonitro.comgonitro.com

PDF & eSign Software | Smart Document Solutions | Nitro Software

Simplify how your business works. Streamline document workflows, boost productivity, and ensure data security with Nitro's powerful PDF & eSign solutions.

Title Length64 chars

Recommended: 50-60 chars

Description Length154 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

5 rules

Allows all crawlers

Sponsored

Security Score

66%Fair

Interactive

HTTPS

WAF

45d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

06.01.2026

Valid Until

06.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

6ef7d7eb.sni.cloudflaressl.comwww.gonitro.com

SHA-256 Fingerprint

27:6D:58:A7:59:2F:E4:DD:71:A4:DC:42:8B:E3:23:42:2B:A0:57:6D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 5s(s-maxage=36000, max-age=5)

cf-ray🇩🇪 Frankfurt

9d0ac947ae8ee5da-FRA

content-encoding

⚡ Brotli(br)

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

gonitro-com.mail.protection.outlook.com

Domain Information

gonitro.com

Domain Age

18y 3m

Created

31.10.2007

Expires

31.10.2026

Last Updated

27.10.2023

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

DM Serif Display + sans-serif

80/100

Readability

/30

40/40

16px · LH 1.75

Hierarchy

/20

18/25

3x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

DM Serif Display

Serif48px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

48px

40px

24px

20px

16px

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

✅ Optimal line spacing: 1.75 ratio ensures comfortable reading.

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

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

✅ Protected text on images: Using gradient for readability.

✅ Clean layout: Consistent left alignment throughout.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

CookiebotMid-Market

Cookie consent and privacy compliance tools

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

gonitro.com(12)local(2)js.usemessages.com(1)js.hs-analytics.net(1)js.hs-banner.com(1)

Website Identity

Facebook Instagram LinkedIn YouTube

Sponsored

Last analyzed: 20 Feb 2026 at 03:06

Historical Analysis & Change Tracking