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.

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spine-health.com

https://spine-health.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

spine-health.com

Sponsored

Hosting Provider

Pantheon

pantheon.io

IP Address

23.185.0.253

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ns-cloud-a1.googledomains.com.ns-cloud-a3.googledomains.com.ns-cloud-a2.googledomains.com.ns-cloud-a4.googledomains.com.

Performance

Page Speed

1.1 MB

85 requests

Image Optimization

Lazy LoadWebPResponsiveCloudinary

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

14 Technologies Detected

Advertising

Google Ads Criteo Outbrain

Icon Libraries

Font Awesome Material Icons

Analytics

Libraries

CSS Frameworks

Fonts

Tag Managers

Payments

Web Servers

Security

SEO Analysis

C67/100

spine-health.comspine-health.com

Trusted Information on Back Pain and Neck Pain

Discover expert information on neck and back pain at www.spine-health.com – the trusted source for comprehensive, peer-reviewed content written by medical pr...

Description truncated.

Title Length46 chars

Recommended: 50-60 chars

Description Length169 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (19/22)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

robots.txt

60 rules

Sitemap reference found

Sponsored

Security Score

15%Critical

Critical / Transactional

HTTPS

No WAF

64d

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

23.01.2026

Valid Until

23.04.2026

Subject Alternative Names (4)

forum.veritashealth.comlive.spine-health.comspine-health.comwww.spine-health.com

SHA-256 Fingerprint

0D:89:47:89:2F:68:4F:44:4E:25:32:8F:F1:84:C9:64:5D:86:BF:2A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-credentials

true

access-control-allow-headers

access-control-allow-methods

access-control-allow-origin

https://*.spine-health.com

age

27717

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

smtp.google.com

Domain Information

spine-health.com

Domain Age

26y 7m

Created

14.07.1999

Expires

14.07.2027

Last Updated

04.04.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Georgia + Arial

76/100

Readability

/30

40/40

18px · LH 1.75

Hierarchy

/20

13/25

1.86x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Georgia

Serif34px

Body Font

Arial

Sans18px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

34px

28px

23px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.75 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

⚠️ Cramped layout: 16 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Social Media

Pinterest WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)googletagmanager.com(2)assets.pinterest.com(1)c.amazon-adsystem.com(1)gstatic.com(1)

Website Identity

spine-health.com

26 years old

GoDaddy.com, LLC📧 Google Workspace

Social Profiles

Facebook YouTube Pinterest

Sponsored

Last analyzed: 17 Feb 2026 at 23:43

Historical Analysis & Change Tracking