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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thyroid.org

https://thyroid.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026

Export

thyroid.org

Mobile

Sponsored

Hosting Provider

Performive LLC

IP Address

107.181.162.232

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Atlanta, United States

ASN

AS46562

Organization

Performive LLC

Server

Apache

Nameservers

ns08.domaincontrol.com.ns07.domaincontrol.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.5 MB

78 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Salientv10.0.1Custom

by ThemeNectar

View Theme

Technology Stack

18 Technologies Detected

Plugins

Captcha Revslider Js_Composer_Salient

Analytics

Libraries

UI Components

Other

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Web Servers

Customer Support

SEO Analysis

A82/100

Meta Tags12/15

Content8/12

Headings3/8

Technical24/25

E-E-A-T5/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness4/4

Mobile4/4

Indexability3/3

thyroid.orgthyroid.org

American Thyroid Association | ATA

The American Thyroid Association® (ATA) is the professional home for clinicians and researchers dedicated to thyroid health. Learn more and join us.

Title Length34 chars

Recommended: 50-60 chars (~202px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

12 sub-sitemaps

robots.txt

2 rules

Local SEO

Local Search Readiness

20/100

Needs Work

5 12

Sponsored

AI & LLM Readiness

D47/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

7/25

Citation

13/25

AI Bot Access

14/14 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:3%

Words:954

Token eff.:Optimal

Structured Data

3 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

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.

72/100

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

5/15

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

11/15

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

ARIA & Roles

10/15

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

3 recommendations

•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.

45/100

193 mg

CO₂e / view

1.5 MB

Page Weight

60%

Cleaner Than

New Visitor

220 mg

Returning (cached)

110 mg

Annual (10K/mo)

23.1 kg

Emission Segments

Data Center

43 mg

Network

46 mg

Device

103 mg

Resource Breakdown

JavaScript

381.7 KB

Images

681.4 KB

CSS

455.3 KB

Fonts

2.0 KB

HTML

37.9 KB

Green Hosting Not Verified

Performive LLC

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

61%Fair

Interactive

HTTPS

No WAF

44d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

11.03.2026

Valid Until

09.06.2026

Subject Alternative Names (2)

thyroid.orgwww.thyroid.org

SHA-256 Fingerprint

D8:6E:B8:50:D2:7B:FE:E1:42:38:3B:8C:B8:DA:05:68:24:98:36:97...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(max-age=0, no-cache, no-store, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

38484

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

thyroid-org.mail.protection.outlook.com

Domain Information

thyroid.org

Domain Age

30y 1m

Created

23.03.1996

Expires

24.03.2030

Last Updated

10.01.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

68/100

Mobile Friendly47 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, maximum-scale=1, user-scalable=0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Open Sans + Lato

WCAG Partial

49/100

Readability

/30

17/30

15px · LH 1.80

Hierarchy

/20

8/20

WCAG

/25

13/25

1:1 min contrast

Performance

/25

11/25

2 fonts · 7 req

Heading Font

Open Sans

Sans

Body Font

Lato

Sans15px

Contrast Ratio

1:1

36 issues

Reading Comfort

~34 CPL

Narrow lines

26px

22px

12px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 36 elements below WCAG AA threshold (min 1.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ Lean font stack: 2 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFlesch 28

Color Palette

11 unique colors

21:1 AAA Light

#ffffff

Background· 38.099999999999994%

#000000

Text· 10.2%

#1c7a8b

Primary· 8.7%

#5d9d95

Primary· 7.3%

#a3ca5f

Secondary· 7.1%

#090f12

Secondary· 7.1%

#97ae8a

Secondary· 3.4%

#fce6c9

Accent· 2.4%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

thyroid.org(14)googletagmanager.com(2)platform.twitter.com(1)google-analytics.com(1)translate.googleapis.com(1)

Website Identity

American Thyroid Association

Organization

The American Thyroid Association® (ATA) is the professional home for clinicians and researchers dedicated to thyroid health. Learn more and join us.

www.thyroid.org/

30 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLC📧 Microsoft 365en-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube Pinterest

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Last analyzed: 25 Apr 2026 at 18:09

Historical Analysis & Change Tracking