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

ulta.com

https://ulta.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

ulta.com

Mobile

Sponsored

Hosting Provider

Akamai Technologies

IP Address

2.23.244.139

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16625

Server

Nginx

CDN

Akamai

WAF

Akamai

Nameservers

a1-188.akam.net.a10-65.akam.net.a26-67.akam.net.a11-66.akam.net.+2 more

Performance

Page Speed

3.7 MB

278 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Akamai Technologies

CDN

Akamai

Progressive Web App

PWA ReadyWeb ManifestService WorkerTheme Color

Detected API Sources

https://conversation.ultainc.c...

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

Customer Support

Zendesk

SEO Analysis

C64/100

ulta.comulta.com

Ulta Beauty | Makeup, Skin Care, Fragrance, Hair Care & Beauty Prod...

Shop top beauty brands & new arrivals at Ulta Beauty. Join Ulta Beauty Rewards. Free store pickup & curbside available.

Title truncated.

Title Length71 chars

Recommended: 50-60 chars

Description Length119 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (43/47)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

22 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

WAF

62d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.04.2025

Valid Until

17.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (9)

www.ulta.comapi.ulta.combeautyservices.ulta.comconversation.ultainc.comimages.ulta.compop.ultabeauty.comservices.ulta.comubmedia.ulta.com+1 more

SHA-256 Fingerprint

75:8E:34:F1:C0:63:19:77:AC:BF:C1:46:0A:F9:6D:AA:47:9E:A1:7E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

content-encoding

⚡ Brotli(br)

content-type

text/html

date

Sat, 14 Feb 2026 23:49:06 GMT

link

<https://www.ulta.com/ux/assets/assets/2853067c.woff2>;rel="...

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb-001e8203.gslb.pphosted.com

mxa-001e8203.gslb.pphosted.com

Domain Information

ulta.com

Domain Age

27y 11m

Created

27.02.1998

Expires

26.02.2030

Last Updated

27.01.2026

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Circular

60/100

Readability

/30

12/40

12px · LH 1.33

Hierarchy

/20

25/25

2.67x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Circular

Sans32px

Body Font

Circular

Sans12px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

32px

24px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.7x 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

11 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Pinterest AdsMid-Market

TikTok PixelMid-Market

Microsoft AdsEnterprise

CriteoEnterprise

Reddit PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Affiliate & Partnerships

ImpactEnterprise

Affiliate networks and partner tracking

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(12)tags.tiqcdn.com(2)static.narrativ.com(1)mi.ulta.com(1)d.impactradius-event.com(1)

Website Identity

ulta.com

27 years old

Network Solutions, LLC

Social Profiles

Facebook X (Twitter)Instagram YouTube Pinterest

Sponsored

Last analyzed: 14 Feb 2026 at 23:49

Historical Analysis & Change Tracking