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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notionpress.com

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

Export

notionpress.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.151.131.119

Server Location

🇸🇬 Singapore, Singapore

ASN

AS16509

Organization

AWS EC2 (ap-southeast-1)

Server

Apache

Nameservers

ns-676.awsdns-20.net.ns-1048.awsdns-03.org.ns-1927.awsdns-48.co.uk.ns-367.awsdns-45.com.

Performance

Page Speed

2 MB

189 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

19 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Libraries

CSS Frameworks

Advertising

Twitter Ads LinkedIn Ads

Meta Frameworks

UI Components

Other

Icon Libraries

Fonts

Tag Managers

Social

Web Servers

Customer Support

SEO Analysis

B72/100

notionpress.comnotionpress.com

Self-publishing in India | Book Publishers | Online Publishing

Notion Press is India's Fastest Growing Self-publishing platform with 30,000+ books published in both Print & eBook formats. Publish with Notion Press, sell ...

Description truncated.

Title Length62 chars

Recommended: 50-60 chars

Description Length235 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

robots.txt

11 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

18.05.2025

Valid Until

17.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.notionpress.comnotionpress.com

SHA-256 Fingerprint

7A:15:CB:10:89:0C:4E:82:E2:48:EA:51:1B:FA:36:4F:44:38:ED:6A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 17:42:56 GMT

keep-alive

timeout=5, max=500

server

Apache/2.4.18 (Ubuntu)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx2.googlemail.com

aspmx3.googlemail.com

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

+1 more

Domain Information

notionpress.com

Domain Age

14y 4m

Created

19.10.2011

Expires

19.10.2028

Last Updated

17.08.2022

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Roboto + sans-serif

86/100

Readability

/30

40/40

16px · LH 1.44

Hierarchy

/20

25/25

2.62x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Roboto

Sans42px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~63 CPL

Optimal (45–75)

42px

20px

16px

18px

16px

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

✅ Optimal line spacing: 1.44 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.6x 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.

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts

Business & Marketing Stack

9 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

LinkedIn AdsEnterprise

Quora PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

ShareThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

notionpress.com(4)googletagmanager.com(3)connect.facebook.net(2)buttons-config.sharethis.com(1)scripts.clarity.ms(1)

Website Identity

Facebook Instagram LinkedIn YouTube

Sponsored

Last analyzed: 19 Feb 2026 at 17:43

Historical Analysis & Change Tracking