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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.

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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

harvardbusiness.org

https://harvardbusiness.org· First analyzed 26 Apr 2026· Updated 26 Apr 2026

Export

harvardbusiness.org

Mobile

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.20

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1692.awsdns-19.co.uk.ns-359.awsdns-44.com.ns-649.awsdns-17.net.ns-1239.awsdns-26.org.

Performance

Core Web Vitals

Weight

First Contentful Paint

817 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.2 MB

63 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

coreCustom

Technology Stack

18 Technologies Detected

Plugins

Safe Svg Hyperlink Group Block Wp User Avatar Block Editor Custom Alignments Wp Swiper Easy Notification Bar Page Links To

Yoast SEO

Advanced Custom Fields

Analytics

Google Analytics

Microsoft Clarity

Advertising

LinkedIn Ads Microsoft Advertising

Libraries

UI Components

CSS Frameworks

Tag Managers

CDN

SEO Analysis

A81/100

Meta Tags14/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images3/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

harvardbusiness.orgharvardbusiness.org

Leadership that Moves Business Forward | Harvard Business Impact

Harvard Business Impact empowers organizations to unlock the full potential of their people and drive transformation in a changing world.

Title Length64 chars

Recommended: 50-60 chars (~394px / 580px)

Description Length137 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (15/16) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

24/100

Needs Work

7 10

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

7/25

Citation

18/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:3%

Words:1,161

Token eff.:Optimal

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary12w

Descriptive Headingsavg 4.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

84/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

12/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

62/100

127 mg

CO₂e / view

1.2 MB

Page Weight

70%

Cleaner Than

New Visitor

146 mg

Returning (cached)

73 mg

Annual (10K/mo)

15.3 kg

Emission Segments

Data Center

6 mg

Network

37 mg

Device

84 mg

Resource Breakdown

JavaScript

138.9 KB

Images

766.0 KB

CSS

306.7 KB

HTML

50.1 KB

Green Hosting Verified

WP Engine

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

58d

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

26.03.2026

Valid Until

24.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.harvardbusiness.org

SHA-256 Fingerprint

CF:71:53:7E:7D:D7:94:71:B7:91:2B:42:D8:A8:DE:A4:D6:54:94:AB...

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

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f255e18ecd3ed53-MXP

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb-00044a01.gslb.pphosted.com

mxa-00044a01.gslb.pphosted.com

Domain Information

harvardbusiness.org

Domain Age

25y 12m

Created

07.05.2000

Expires

07.05.2027

Last Updated

10.04.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

83/100

Mobile Friendly47 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

GT America Standard

WCAG Partial

65/100

Readability

/30

22/30

24px · LH 1.40

Hierarchy

/20

8/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

18/25

1 font · 5 req

Heading Font

GT America Standard

Sans

Body Font

GT America Standard

Sans24px

Contrast Ratio

1:1

4 issues

Reading Comfort

~37 CPL

Narrow lines

84px

40px

64px

24px

Minor Second

Scale

✅ Excellent readability: 24px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 0

Color Palette

14 unique colors

6.24:1 AA Dark

#000000

Text· 9.1%

#808f8e

Other· 8.2%

#8da9a7

Secondary· 13.9%

#0c292f

Primary· 13.200000000000001%

#224145

Secondary· 8.2%

#475d5f

Secondary· 7.6%

#abc0bf

Secondary· 7.4%

#f1f2ef

Secondary· 7.2%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

harvardbusiness.org(7)googletagmanager.com(3)img.en25.com(2)bat.bing.com(2)snap.licdn.com(2)

Website Identity

Harvard Business Impact

Organization

Harvard Business Impact empowers organizations to unlock the full potential of their people and drive transformation in a changing world.

corporate@harvardbusiness.org

www.harvardbusiness.org/

25 years old

Location detected: 🇺🇸 United Statesvia ip

MarkMonitor Inc.en-US

Social Profiles

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 26 Apr 2026 at 11:50

Historical Analysis & Change Tracking