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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teacup.com

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

Export

teacup.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.168.16.81

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

CDN

Nameservers

ns-251.awsdns-31.com.ns-887.awsdns-46.net.ns-1116.awsdns-11.org.ns-1667.awsdns-16.co.uk.

Performance

Page Speed

551 KB

60 requests

Image Optimization

Lazy LoadAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.8.2

cms

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Segment

Libraries

jQueryv3.7.1

Animate.css

Fonts

Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

Tailwind CSS

Plugins

Shifter Redirects

SEO Analysis

A80/100

teacup.comteacup.com

teacup. byGMO サービス終了のお知らせ｜GMO MEDIA

teacup. byGMO サービス終了のお知らせ teacup. byGMOは、2022年8月1日をもちまし

Title Length35 chars

Recommended: 50-60 chars

Description Length55 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

76%Good

Static / Informational

HTTPS

WAF

150d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.01.2026

Valid Until

21.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

blockchaingame.worldwww.gmo.mediaapi.yomipo.yomiuri.co.jp*.reserve.coeteco.jpdev.yomipo.yomiuri.co.jp*.playwall.games*.pointtown.com*.blockchaingame.jp+12 more

SHA-256 Fingerprint

A8:2E:05:5A:68:DB:1F:FD:3F:8E:29:0F:79:A5:1C:B2:F2:DE:EE:A1...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 0s(max-age=0)

content-encoding

📦 Gzip(gzip)

content-length

7979

content-type

text/html; charset=UTF-8

date

Fri, 20 Feb 2026 09:25:57 GMT

etag

W/"dbd78a4976b8437365a4ad56b3ba90f6"

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

alt1.aspmx.l.google.com

aspmx3.googlemail.com

aspmx2.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

teacup.com

Domain Age

25y 11m

Created

07.03.2000

Expires

07.03.2027

Last Updated

19.02.2026

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

ヒラギノ角ゴ Pro W3

75/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

20/25

1.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

ヒラギノ角ゴ Pro W3

Sans24px

Body Font

ヒラギノ角ゴ Pro W3

Sans14px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

24px

14px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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.

✅ Protected text on images: Using gradient for readability.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)cache.img.gmo.jp(3)connect.facebook.net(2)google-analytics.com(2)apis.google.com(1)

Website Identity

Facebook X (Twitter)YouTube

Sponsored

Last analyzed: 20 Feb 2026 at 09:26

Historical Analysis & Change Tracking