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

adp.com

https://adp.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

adp.com

Mobile

Sponsored

Hosting Provider

Automatic Data Processing, Inc.

IP Address

170.146.93.56

Server Location

🇺🇸 Roseland, United States

ASN

AS14299

Organization

Automatic Data Processing, Inc.

Nameservers

a18-66.akam.net.a28-64.akam.net.a9-67.akam.net.a5-66.akam.net.+6 more

Performance

Page Speed

687 KB

64 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

Sitecore

Infrastructure

Hosting

Automatic Data Processing, Inc.

Technology Stack

5 Technologies Detected

Libraries

CSS Frameworks

Analytics

Tag Managers

Customer Support

SEO Analysis

A82/100

adp.comadp.com

Payroll, HR and Tax Services | ADP Official Site

ADP offers industry-leading online payroll and HR solutions, plus tax, compliance, benefit administration and more.

Title Length48 chars

Recommended: 50-60 chars

Description Length115 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (24/42)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

4,493 URLs

robots.txt

64 rules

Sitemap reference found

Sponsored

Security Score

66%Fair

Interactive

HTTPS

No WAF

44d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

25.02.2025

Valid Until

28.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.adp.comadp.caadp2.adp.caar.adp.comau.adp.comblog.rollbyadp.comblogrollbyadp-app.adp.combr.adp.com+12 more

SHA-256 Fingerprint

10:DE:47:08:A6:01:F8:7A:AC:5E:F6:C1:3D:F3:A9:61:17:76:D3:97...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-headers

GET,POST,OPTIONS

access-control-allow-origin

cache-control

🔴 No Cache(max-age=0, no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self' https://adp.lookbookhq.com http://adp...

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)

mxa-0006eb01.gslb.pphosted.com

mxb-0006eb01.gslb.pphosted.com

Domain Information

adp.com

Domain Age

34y 8m

Created

24.06.1991

Expires

30.06.2026

Last Updated

29.05.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

TaubSans_variable

43/100

Readability

/30

24/40

15px · LH 1.20

Hierarchy

/20

18/25

2.93x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

TaubSans_variable

Sans44px

Body Font

TaubSans_variable

Sans15px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

44px

36px

24px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

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

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

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

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFontsVariable Fonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)local(4)adp.com(3)cdn-prod.securiti.ai(2)redditstatic.com(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 12 Feb 2026 at 13:17

Historical Analysis & Change Tracking