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

labcorp.com

https://labcorp.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

labcorp.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.18.30.60

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dns4.labcorp.com.dns3.labcorp.com.

Performance

Page Speed

5.1 MB

93 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

CDN

Cloudflare

SEO Analysis

B70/100

labcorp.comlabcorp.com

Lab Diagnostics & Drug Development, Global Life Sciences Leader | L...

Labcorp helps patients, providers, organizations, and biopharma companies to guide vital healthcare decisions each and every day.

Title truncated.

Title Length73 chars

Recommended: 50-60 chars

Description Length129 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

robots.txt

33 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

WAF

40d

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

Valid From

02.01.2026

Valid Until

02.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.labcorp.com

SHA-256 Fingerprint

B7:4C:EB:60:C1:E9:8D:B8:A0:F1:6C:46:73:AD:89:10:2B:14:BF:2C...

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

www2.labcorp.com,cddmedical.labcorp.com,dianon.labcorp.com,d...

age

cache-control

🟡 1 Hours(max-age=3600)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9d0b45fc4afad223-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx0b-00266502.pphosted.com

mx0a-00266502.pphosted.com

Domain Information

labcorp.com

Domain Age

30y 7m

Created

11.07.1995

Expires

10.07.2026

Last Updated

06.07.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

source-serif-pro + sans-serif

63/100

Readability

/30

32/40

18px · LH 1.22

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

source-serif-pro

Serif

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

20px

14px

32px

18px

Perfect Fifth

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Good performance: Using 2 font families keeps load times fast.

⚠️ Cramped layout: 60 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)cdn.cookielaw.org(2)rum.hlx.page(1)assets.adobedtm.com(1)static.cloudflareinsights.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube Threads

Sponsored

Last analyzed: 20 Feb 2026 at 04:31

Historical Analysis & Change Tracking