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

optum.com

https://optum.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

optum.com

Sponsored

Hosting Provider

UnitedHealth Group Incorporated

IP Address

149.111.128.88

Server Location

🇺🇸 Plymouth, United States

ASN

AS10879

Organization

UnitedHealth Group Incorporated

CDN

Fastly

Nameservers

epla1.corpnamesvcs.com.epla2.corpnamesvcs.com.

Performance

Page Speed

15.3 MB

139 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

Adobe Experience Manager

Infrastructure

Hosting

UnitedHealth Group Incorporated

CDN

Fastly

Technology Stack

6 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Analytics

SEO Analysis

A88/100

optum.comoptum.com

Optum - All Your Health Needs, All in One Place

Optum is committed to making healthcare work better, leading the way to better experiences, better health and lower costs for you.

Title Length47 chars

Recommended: 50-60 chars

Description Length130 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (14/24)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

28 rules

Sitemap reference found

Sponsored

Security Score

76%Good

Interactive

HTTPS

No WAF

326d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.01.2026

Valid Until

11.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.optum.comadvantageplusnetwork.comahatpa-rxportal.sxc.comamerihealth-rxportal.sxc.combcbsaz.rxportal.sxc.combcbsm-rxportal.sxc.combluelink-rxportal.sxc.combusiness.optum.com+12 more

SHA-256 Fingerprint

06:16:FE:7F:5E:5A:7E:F5:DA:5A:85:13:4B:6B:77:F5:72:30:8E:6A...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

6712

cache-control

🟡 60s(public, max-age=60,max-age=300)

content-encoding

📦 Gzip(gzip)

content-length

23375

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb-0077b904.gslb.pphosted.com

mxa-0077b904.gslb.pphosted.com

Domain Information

optum.com

Domain Age

30 years

Created

02.02.1996

Expires

03.02.2027

Last Updated

30.01.2026

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

Typography & Readability

Enterprise Sans + Enterprise Sans Bold

62/100

Readability

/30

24/40

14px · LH 1.29

Hierarchy

/20

18/25

2.86x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Enterprise Sans

Sans40px

Body Font

Enterprise Sans Bold

Sans14px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

40px

29px

12px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

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

⚠️ Cramped layout: 22 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFontsVariable Fonts

Business & Marketing Stack

3 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.adobedtm.com(7)local(5)cdn.gbqofs.com(3)munchkin.marketo.net(2)repo.rakanto.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 19 Feb 2026 at 20:30

Historical Analysis & Change Tracking