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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blackrock.com

https://blackrock.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

blackrock.com

Mobile

Sponsored

Hosting Provider

BlackRock Financial Management, Inc.

IP Address

69.52.2.199

Server Location

🇺🇸 New York, United States

ASN

AS31747

Organization

BlackRock Financial Management, Inc.

Server

Envoy

Nameservers

ns2.blackrock.com.ns1.blackrock.com.ns6.blackrock.com.ns3.blackrock.com.+2 more

Performance

Page Speed

1.4 MB

49 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

BlackRock Financial Management, Inc.

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Icon Libraries

Font Awesome

SEO Analysis

B70/100

blackrock.comblackrock.com

Financial planning and investment management | BlackRock Finland

BlackRock is the world's largest investment manager helping individuals and financial professionals build a better financial future. Read more.

Title Length64 chars

Recommended: 50-60 chars

Description Length143 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

135 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

195d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.08.2025

Valid Until

27.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.blackrock.comblackrock.com

SHA-256 Fingerprint

B3:A2:7D:38:FD:97:A4:7B:4D:E9:3A:64:7C:FC:E7:AD:63:9E:F1:BF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

content-encoding

⚡ Brotli(br)

content-length

16499

content-security-policy

default-src https://www.blackrock.com/1Ek4_8/Ec/EU/Bl8J/PUex...

content-type

text/html;charset=UTF-8

date

Fri, 13 Feb 2026 11:52:41 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxb-00162b01.gslb.pphosted.com

mxa-00162b01.gslb.pphosted.com

Domain Information

blackrock.com

Domain Age

28y 2m

Created

26.11.1997

Expires

25.11.2026

Last Updated

21.11.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

FortExtraBold + FortBook

85/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

18/25

3.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

FortExtraBold

Sans56px

Body Font

FortBook

Sans16px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

56px

20px

24px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)sourcedefense.blackrock.com(2)cdn.cookielaw.org(2)services.sdiapi.com(1)tags.tiqcdn.com(1)

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Last analyzed: 13 Feb 2026 at 11:53

Historical Analysis & Change Tracking