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

nikkansports.com

https://nikkansports.com· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

nikkansports.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.165.122.21

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Apache

CDN

CloudFront

Nameservers

ns-1580.awsdns-05.co.uk.ns-169.awsdns-21.com.ns-925.awsdns-51.net.ns-1338.awsdns-39.org.

Performance

Page Speed

1.5 MB

191 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Progressive Web App

Web ManifestApple Touch Icon

Detected API Sources

//code.piano.io/api/tinypass.m...

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Segment

UI Components

Slick Carousel Fancybox

Libraries

CSS Frameworks

Tag Managers

Advertising

Web Servers

SEO Analysis

C68/100

nikkansports.comnikkansports.com

日刊スポーツ : nikkansports.com

日刊スポーツ新聞社のニュースサイト、ニッカンスポーツ・コム（nikkansports.com）。野球、ＭＬＢ、サッカー、相撲、格闘技をはじめ各種スポーツや五輪、世界大会などビッグイベントを特集。芸能、エンタメ情報など気になる話題や旬ネタも満載です。

Title Length25 chars

Recommended: 50-60 chars

Description Length124 chars

Recommended: 120-160 chars

Issues (1)

• Missing viewport meta tag - page may not be mobile-friendly

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

22 rules

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

150d

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

20.06.2025

Valid Until

18.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (5)

www.nikkansports.com*.nipc.jpnikkansports.comnipc.jp*.nikkansports.com

SHA-256 Fingerprint

3B:16:3D:2D:67:BB:38:B2:4D:00:7B:02:F0:8F:93:2E:F5:0C:BA:DB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 0s(max-age=0, s-maxage=20)

content-encoding

📦 Gzip(gzip)

content-length

40961

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx20.gmoserver.jp

Domain Information

nikkansports.com

Domain Age

29y 6m

Created

26.08.1996

Expires

25.08.2026

Last Updated

20.08.2025

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 ProN W3

54/100

Readability

/30

25/40

16px · LH 1.00

Hierarchy

/20

18/25

2.06x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

ヒラギノ角ゴ ProN W3

Sans33px

Body Font

ヒラギノ角ゴ ProN W3

Sans16px

Contrast Ratio

Reading Comfort

~125 CPL

Needs attention

33px

28px

23px

14px

16px

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

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 2.1x 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.

❌ Very long lines: ~125 chars/line causes eye strain. Use max-width: 65ch.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Matomo (Piwik)Mid-Market

User behavior and product analytics

Advertising

TaboolaMid-Market

Ad platforms and retargeting pixels

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)cache2.nipc.jp(3)dmp.im-apps.net(2)cdn.cxense.com(2)sync.im-apps.net(1)

Website Identity