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.

Back to Search

progressive.com

https://progressive.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

progressive.com

Mobile

Sponsored

Hosting Provider

Progressive Casualty Insurance Company

IP Address

170.218.212.32

Server Location

🇺🇸 Mayfield, United States

ASN

AS11740

Organization

Progressive Casualty Insurance Company

CDN

Akamai

WAF

Akamai

Nameservers

ns04.pgrdns.com.dns1.p09.nsone.net.dns2.p09.nsone.net.dns3.p09.nsone.net.+4 more

Performance

Page Speed

355 KB

86 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Progressive Casualty Insurance Company

CDN

Akamai

Technology Stack

7 Technologies Detected

Meta Frameworks

Libraries

CSS Frameworks

Analytics

Tag Managers

Advertising

Customer Support

SEO Analysis

A88/100

progressive.comprogressive.com

An Insurance Company You Can Rely On | Progressive

Get an insurance quote in minutes from a top-rated company. Find 24/7 support and insurance for you, your family, and your belongings.

Title Length50 chars

Recommended: 50-60 chars

Description Length134 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (17/23)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,490 URLs

robots.txt

68 rules

Sitemap reference found

Sponsored

Security Score

25%Critical

Critical / Transactional

HTTPS

WAF

133d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

28.05.2025

Valid Until

28.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.progressive.com

SHA-256 Fingerprint

AE:2B:C3:D4:46:37:0B:4C:7A:29:98:9C:97:47:3A:62:5D:DE:10:06...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sun, 15 Feb 2026 10:56:11 GMT

link

<https://www.progressive.com/content/fonts/96sans/96Sans-Bol...

pgrxprotocol

443

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx1.hc4529-39.iphmx.com

mx2.hc4529-39.iphmx.com

Domain Information

progressive.com

Domain Age

28y 3m

Created

17.11.1997

Expires

16.11.2026

Last Updated

03.02.2026

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

96 Sans

61/100

Readability

/30

32/40

48px · LH 1.30

Hierarchy

/20

8/25

0.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

96 Sans

Sans24px

Body Font

96 Sans

Sans48px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

24px

18px

12px

18px

48px

Minor Second

Scale

✅ Excellent readability: 48px body text is ideal for all devices.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Quantum MetricEnterprise

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)progressive.com(5)googletagmanager.com(4)f.monetate.net(2)c.amazon-adsystem.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok

Sponsored

Last analyzed: 15 Feb 2026 at 10:56

Historical Analysis & Change Tracking