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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calmatters.org

https://calmatters.org· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

calmatters.org

Sponsored

Hosting Provider

Automattic, Inc

IP Address

192.0.78.220

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

cloe.ns.cloudflare.com.jason.ns.cloudflare.com.

Performance

Page Speed

3.7 MB

80 requests

Image Optimization

Lazy LoadResponsiveJetpack Photon (WordPress)

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Newspack Katharinev2.17.0

by Automattic

View Theme

Technology Stack

21 Technologies Detected

Plugins

Newspack Calmatters Newspack Ads Newspack Blocks Newspack Manager Newspack Newsletters Newspack Plugin Newspack Popups

Jetpack

Perfmatters Wp Parsely

Libraries

Analytics

CSS Frameworks

Fonts

Tag Managers

Advertising

Web Servers

Customer Support

SEO Analysis

A+94/100

calmatters.orgcalmatters.org

CalMatters - California Politics, Policy, and Political News

CalMatters is the leading nonprofit, nonpartisan newsroom committed to explaining California politics and policy.

Title Length60 chars

Recommended: 50-60 chars

Description Length113 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

8 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

30d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

19.12.2025

Valid Until

19.03.2026

Subject Alternative Names (1)

calmatters.org

SHA-256 Fingerprint

DF:53:25:2F:1D:84:0F:14:6E:43:AA:98:96:5D:62:7F:19:1D:51:4F...

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

🟡 273s(max-age=273, must-revalidate)

content-encoding

⚡ Brotli(br)

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

date

Mon, 16 Feb 2026 14:14:28 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com

aspmx2.googlemail.com

aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

calmatters.org

Domain Age

11y 7m

Created

12.07.2014

Expires

12.07.2026

Last Updated

24.11.2025

Registrar

Automattic Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Source Sans Pro

58/100

Readability

/30

17/40

14px · LH 1.14

Hierarchy

/20

18/25

3.14x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Source Sans Pro

Sans44px

Body Font

Source Sans Pro

Sans14px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

44px

32px

24px

18px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

⚠️ Tight line spacing (1.14). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 3.1x 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.

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

GGoogle Fonts

Business & Marketing Stack

3 Tools Detected

Advanced

Marketing Automation

ActiveCampaignMid-Market

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

calmatters.org(7)c0.wp.com(4)static.trueanthem.com(2)diffuser-cdn.app-us1.com(1)experiments.parsely.com(1)

Website Identity

calmatters.org

11 years old

Automattic Inc.📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram LinkedIn TikTok Bluesky

Sponsored

Last analyzed: 16 Feb 2026 at 14:14

Historical Analysis & Change Tracking