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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actblue.com

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

Export

actblue.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.164.206.128

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Nameservers

ns-1760.awsdns-28.co.uk.ns-382.awsdns-47.com.ns-956.awsdns-55.net.ns-1517.awsdns-61.org.

Performance

Page Speed

2 MB

83 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

React

CMS

WordPress

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

16 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Libraries

jQueryv3.7.1

Lodash

Advertising

LinkedIn Ads Microsoft Advertising

Frameworks

Other

CSS Frameworks

Fonts

Tag Managers

Marketing

Customer Support

Plugins

SEO Analysis

B70/100

actblue.comactblue.com

ActBlue: Elevate Your Fundraising - Create Campaigns for Political ...

Launch your fundraising efforts with ActBlue, the ultimate platform for easy and effective online fundraising.

Title truncated.

Title Length98 chars

Recommended: 50-60 chars

Description Length110 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (12/12)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

robots.txt

24 rules

Sitemap reference found

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

139d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

04.06.2025

Valid Until

06.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.actblue.com

SHA-256 Fingerprint

39:7A:19:30:E0:08:B0:D0:F5:26:D0:40:03:B5:8F:C5:34:6C:F2:3D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

82687

cache-control

🟡 600s(max-age=600, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

29680

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 (7)

aspmx4.googlemail.com

aspmx5.googlemail.com

aspmx3.googlemail.com

aspmx2.googlemail.com

+3 more

Domain Information

actblue.com

Domain Age

22 years

Created

08.02.2004

Expires

08.02.2027

Last Updated

04.01.2026

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Saans-Medium

81/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

18/25

3.56x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Saans-Medium

Sans64px

Body Font

Saans-Medium

Sans18px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

64px

42px

18px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.6x 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.

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

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

8 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)actblue.com(3)connect.facebook.net(2)bat.bing.com(2)js.adsrvr.org(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 08:16

Historical Analysis & Change Tracking