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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silverstripe.org

https://silverstripe.org· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

silverstripe.org

Sponsored

Hosting Provider

Incapsula Inc

IP Address

45.60.15.134

Server Location

🇬🇧 London, United Kingdom

ASN

AS19551

Organization

Incapsula Inc

CDN

Nameservers

ns-1394.awsdns-46.org.ns-1739.awsdns-25.co.uk.ns-897.awsdns-48.net.ns-97.awsdns-12.com.

Performance

Page Speed

1.6 MB

68 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

SilverStripe

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

Libraries

CSS Frameworks

Fonts

Adobe Fonts (Typekit)

Payments

Stripe

Customer Support

Zendesk

Security

reCAPTCHA

SEO Analysis

B76/100

silverstripe.orgsilverstripe.org

Open Source » Silverstripe CMS

Silverstripe CMS is the intuitive, open-source content management system and flexible framework loved by editors and developers alike. Equip your web teams t...

Description truncated.

Title Length30 chars

Recommended: 50-60 chars

Description Length187 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

robots.txt

5 rules

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

WAF

324d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

16.12.2025

Valid Until

10.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

silverstripe.orgwww.silverstripe.org

SHA-256 Fingerprint

C9:62:EF:A8:3F:10:39:A4:63:0F:DC:F6:05:FC:98:22:A5:EE:ED:D1...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 300s(max-age=300, public, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 05:45:19 GMT

etag

"a9ae849bf0dedc576d8a21ad0c33488c-gzip"

expires

Fri, 20 Feb 2026 05:50:19 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (7)

aspmx5.googlemail.com

alt2.aspmx.l.google.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

+3 more

Domain Information

silverstripe.org

Domain Age

19y 4m

Created

12.10.2006

Expires

12.10.2026

Last Updated

18.08.2024

Registrar

101domain GRS Limited

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

pt sans + Helvetica Neue

35/100

Readability

/30

32/40

15px · LH 1.50

Hierarchy

/20

8/25

1x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

pt sans

Sans15px

Body Font

Helvetica Neue

Sans15px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

15px

50px

24px

20px

15px

Augmented Fourth

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 17 elements lack adequate spacing.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)cdnjs.cloudflare.com(2)rules.quantcount.com(1)gstatic.com(1)secure.quantserve.com(1)

Website Identity

Facebook X (Twitter)LinkedIn GitHub

Sponsored

Last analyzed: 20 Feb 2026 at 05:45

Historical Analysis & Change Tracking