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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silverchair.com

https://silverchair.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

silverchair.com

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.11

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1942.awsdns-50.co.uk.ns-248.awsdns-31.com.ns-771.awsdns-32.net.ns-1508.awsdns-60.org.

Performance

Page Speed

1.4 MB

91 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.8.3

cms

Technology Stack

14 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Libraries

Plugins

Other

CSS Frameworks

Icon Libraries

Analytics

Tag Managers

Advertising

CDN

SEO Analysis

A88/100

silverchair.comsilverchair.com

The Silverchair Platform for professional & scholarly publishers

The Silverchair Platform offers not only all the tools & technology you need to succeed, but also best-in-class services

Title Length64 chars

Recommended: 50-60 chars

Description Length120 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

1 rules

Allows all crawlers

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

79d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.02.2026

Valid Until

10.05.2026

Subject Alternative Names (1)

www.silverchair.com

SHA-256 Fingerprint

9C:27:D2:7A:8F:4D:4F:AF:4B:0E:DD:7F:CB:B9:A7:55:96:72:8C:57...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

date

Thu, 19 Feb 2026 22:00:40 GMT

content-type

text/html; charset=UTF-8

content-encoding

⚡ Brotli(br)

vary

Accept-Encoding, Cookie

link

<https://www.silverchair.com/wp-json/>; rel="https://api.w.o...

x-powered-by

WP Engine

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

silverchair-com.mail.protection.outlook.com

Domain Information

silverchair.com

Domain Age

30y 3m

Created

29.11.1995

Expires

28.11.2026

Last Updated

24.10.2025

Registrar

Amazon Registrar, 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

brandon-grotesque + sans-serif

77/100

Readability

/30

40/40

18px · LH 1.44

Hierarchy

/20

21/25

2.78x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

brandon-grotesque

Sans50px

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~81 CPL

Needs attention

50px

36px

26px

19px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.44 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

⚠️ Wide lines: ~81 chars/line. Consider max-width for better reading flow.

GGoogle Fonts AAdobe Fonts 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

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

silverchair.com(14)cookie-cdn.cookiepro.com(3)googletagmanager.com(1)use.typekit.net(1)f1-na.readspeaker.com(1)

Website Identity

Instagram LinkedIn YouTube Threads Bluesky

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Last analyzed: 19 Feb 2026 at 22:01

Historical Analysis & Change Tracking