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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readspeaker.com

https://readspeaker.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

readspeaker.com

Sponsored

Hosting Provider

ReadSpeaker AB

IP Address

185.78.172.241

Server Location

🇸🇪 Karlstad, Sweden

ASN

AS49959

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns1.eurodns.com.ns2.eurodns.com.ns3.eurodns.com.ns4.eurodns.com.

Performance

Page Speed

682 KB

123 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

ReadSpeaker AB

CDN

Cloudflare

Technology Stack

14 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Font Awesome Material Icons

Fonts

Google Fonts Adobe Fonts (Typekit)

Plugins

Tag Managers

CDN

SEO Analysis

A82/100

readspeaker.comreadspeaker.com

Text to Speech with 200+ Realistic AI Voices in 50+ languages

ReadSpeaker provides 200+ realistic AI voices in 50+ languages to make your content, products, and services more engaging. Try our text to speech technology ...

Description truncated.

Title Length61 chars

Recommended: 50-60 chars

Description Length163 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

12 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Interactive

HTTPS

WAF

259d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

03.11.2025

Valid Until

03.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.readspeaker.comreadspeaker.com

SHA-256 Fingerprint

D8:52:EE:C2:CB:2E:44:62:D7:D1:11:D7:9E:75:23:5B:7C:0F:1F:BA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cf3175e68a4e537-FRA

content-encoding

⚡ Brotli(br)

content-security-policy

frame-ancestors 'self' https://*.tps.lv https://tps.lv https...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

aspmx3.googlemail.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

+1 more

Domain Information

readspeaker.com

Domain Age

24y 1m

Created

17.01.2002

Expires

17.01.2027

Last Updated

11.01.2026

Registrar

EuroDNS S.A.

DNSSEC

Not Enabled

Privacy & Compliance

iubenda

Cookie Consent Banner

iubenda

GDPR Indicators

Cookie consent banner detected

CMP: iubenda

Data Protection Officer mentioned

Typography & Readability

Museo Sans + system-ui

88/100

Readability

/30

40/40

20px · LH 1.50

Hierarchy

/20

25/25

2.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Museo Sans

Sans55px

Body Font

system-ui

Sans20px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

55px

50px

36px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

PostHogMid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

IubendaSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.iubenda.com(3)assets-readspeaker.com(3)cdnjs.cloudflare.com(2)cs.iubenda.com(1)eu-assets.i.posthog.com(1)

Website Identity

Facebook Instagram LinkedIn YouTube TikTok Bluesky

Sponsored

Last analyzed: 17 Feb 2026 at 06:05

Historical Analysis & Change Tracking