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

massgeneral.org

https://massgeneral.org· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

massgeneral.org

Mobile

Sponsored

Hosting Provider

Mass General Brigham Incorporated

IP Address

170.223.88.198

Server Location

🇺🇸 Dedham, United States

ASN

AS40831

Organization

Mass General Brigham Incorporated

Server

Microsoft IIS

Nameservers

ecorexns1.partners.org.ecorexns2.partners.org.ocorexns1.partners.org.ocorexns2.partners.org.

Performance

Page Speed

3 MB

42 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Mass General Brigham Incorporated

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Other

CSS Frameworks

Icon Libraries

Analytics

Web Servers

SEO Analysis

B76/100

massgeneral.orgmassgeneral.org

Massachusetts General Hospital

Patients at Mass General have access to a vast network of physicians, nearly all of whom are Harvard Medical School faculty and many of whom are leaders with...

Description truncated.

Title Length30 chars

Recommended: 50-60 chars

Description Length173 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

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Crawlability

Sitemap

Type: index

28 URLs

robots.txt

123 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

111d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.06.2025

Valid Until

05.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

www.massgeneral.orgm.massgeneral.orgmassgeneral.orgwww.mgh.harvard.edu

SHA-256 Fingerprint

BB:60:12:AB:F0:94:95:D3:AD:4B:BE:83:E1:35:A2:1C:32:25:0A:5E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-length

20673

content-type

text/html; charset=UTF-8

date

Sat, 14 Feb 2026 23:52:35 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

phsmgmx.partners.org

Domain Information

massgeneral.org

Domain Age

27 years

Created

11.02.1999

Expires

11.02.2034

Last Updated

26.08.2024

Registrar

eNom, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

serif + sans-serif

78/100

Readability

/30

32/40

16px · LH 1.25

Hierarchy

/20

18/25

4.06x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

serif

Serif65px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

65px

30px

40px

18px

16px

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

✅ Strong hierarchy: Headlines are 4.1x larger than body text.

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

⚠️ Cramped layout: 13 elements lack adequate spacing.

Business & Marketing Stack

4 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)mgb.containers.piwik.pro(2)munchkin.marketo.net(2)youtube.com(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 14 Feb 2026 at 23:52

Historical Analysis & Change Tracking