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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tatler.com

https://tatler.com· First analyzed 22 Apr 2026· Updated 22 Apr 2026

Export

tatler.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

52.223.6.210

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

CloudFront

CDN

CloudFront

Nameservers

ns-1116.awsdns-11.org.ns-1935.awsdns-49.co.uk.ns-28.awsdns-03.com.ns-836.awsdns-40.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

424 ms10%

Speed Index

551 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.4 MB

106 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

OpenCart

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Advertising

CDN

Security

SEO Analysis

B74/100

Meta Tags12/15

Content3/12

Headings8/8

Technical23/25

E-E-A-T5/7

Images5/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile2/4

Indexability3/3

tatler.comtatler.com

Tatler - The original social media | Tatler

First published in 1709, Tatler is a powerful mix of glamour, fashion, society and features

Title Length43 chars

Recommended: 50-60 chars (~249px / 580px)

Description Length91 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (8 words). Search engines need substantial content for ranking.

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

60 URLs

60 sub-sitemaps

robots.txt

71 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100

Poor

4 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F32/100

Bot Access

10/25

Machine Read.

7/25

Schema Data

6/25

Citation

9/25

AI Bot Access

4/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:1,959

Token eff.:Optimal

Structured Data

3 JSON-LD

Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

Upgrade to view recommendations

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

83/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

11/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

61/100

244 mg

CO₂e / view

2.4 MB

Page Weight

30%

Cleaner Than

New Visitor

279 mg

Returning (cached)

139 mg

Annual (10K/mo)

29.3 kg

Emission Segments

Data Center

12 mg

Network

72 mg

Device

160 mg

Resource Breakdown

JavaScript

1.7 MB

Images

1.9 KB

CSS

549.3 KB

HTML

115.9 KB

Other

822 B

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

31%Critical

Interactive

HTTPS

No WAF

296d

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+H3

Valid From

14.01.2026

Valid Until

12.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

tatler.com*.tatler.com

SHA-256 Fingerprint

61:9A:CF:AD:47:89:7C:D3:EB:9B:C8:A4:4B:28:47:ED:EC:57:68:3A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

236

alt-svc

h3=":443"; ma=86400

back-lae-origin-response-start

1776871945706

cache-control

⚪ Custom(stale-while-revalidate=60, stale-if-error=86400, s-maxage=90...)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt2.aspmx.l.google.com

alt4.aspmx.l.google.com

alt3.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

tatler.com

Domain Age

28y 12m

Created

30.04.1997

Expires

01.05.2027

Last Updated

27.04.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

73/100

Mobile Friendly12 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

EBGaramond + EB Garamond

WCAG Partial

72/100

Readability

/30

24/30

16px · LH 1.50

Hierarchy

/20

14/20

2.25x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

18/25

2 fonts · 4 req

Heading Font

EBGaramond

Sans36px

Body Font

EB Garamond

Serif16px

Contrast Ratio

1:1

11 issues

Reading Comfort

Sans Headlines + Serif Body

left aligned

36px

48px

16px

Minor Third

Scale

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 7/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

Buy on MyFontsFlesch 7

Color Palette

6 unique colors

3.59:1 AA Large Light

#ffffff

Background· 43.699999999999996%

#8b8686

Other· 4.3%

#190e0c

Primary· 5.5%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Social Media

Pinterest WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)googletagmanager.com(2)tatler.com(2)securepubads.g.doubleclick.net(2)uk-script.dotmetrics.net(2)

Website Identity

Tatler

Organization

www.tatler.com

28 years old

Location detected: 🇨🇦 Canadavia ip

CSC Corporate Domains, Inc.📧 Google Workspaceen-GB

Social Profiles

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 22 Apr 2026 at 15:36

Historical Analysis & Change Tracking