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.

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2k.com

https://2k.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

2k.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.238.243.119

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

CDN

CloudFront

Nameservers

ns02.vandalay-industries.net.ns03.vandalay-industries.net.ns04.vandalay-industries.net.dns1.p05.nsone.net.+4 more

Performance

Page Speed

1 MB

86 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

7 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Fonts

Tag Managers

SEO Analysis

A80/100

2k.com2k.com

2K Games – Official Website for 2K

2K publishes titles in today's most popular gaming genres, including shooters, action, role-playing, strategy, sports, casual, and family entertainment.

Title Length34 chars

Recommended: 50-60 chars

Description Length152 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

185d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.07.2025

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

2k.comxcom.2k.comthirtyfirstunion.comwww.xcom.2k.comborderlands.2k.comsportslab.2k.comwww.midnightsuns.2k.commidnightsuns.2k.com+12 more

SHA-256 Fingerprint

61:76:BC:44:DD:05:24:F9:E6:46:67:56:38:88:8F:2D:89:52:F8:4E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

351

cache-control

🟡 300s(max-age=300, stale-while-revalidate=86400, stale-if-error=86...)

content-encoding

⚡ Brotli(br)

content-type

text/html

date

Sun, 15 Feb 2026 03:15:23 GMT

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-002e0402.gslb.pphosted.com

mxb-002e0402.gslb.pphosted.com

Domain Information

2k.com

Domain Age

26 years

Created

08.02.2000

Expires

08.02.2028

Last Updated

07.01.2026

Registrar

MarkMonitor 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

Roboto Condensed + sans-serif

52/100

Readability

/30

25/40

16px · LH 1.15

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Roboto Condensed

Sans40px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

40px

24px

16px

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

⚠️ Tight line spacing (1.15). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(1)cdn.cookielaw.org(1)local(1)js.sentry-cdn.com(1)

Website Identity

2k.com

26 years old

MarkMonitor Inc.

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 15 Feb 2026 at 03:21

Historical Analysis & Change Tracking