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

sfweekly.com

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

Export

sfweekly.com

Mobile

Sponsored

Hosting Provider

Lee Enterprises, Incorporated

IP Address

192.104.182.109

Server Location

🇺🇸 Davenport, United States

ASN

AS10668

Organization

Lee Enterprises, Incorporated

CDN

Cloudflare

WAF

Cloudflare

Nameservers

tegan.ns.cloudflare.com.darwin.ns.cloudflare.com.

Performance

Page Speed

65 KB

22 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Lee Enterprises, Incorporated

CDN

Cloudflare

Technology Stack

4 Technologies Detected

Analytics

Tag Managers

SEO Analysis

F23/100

sfweekly.comsfweekly.com

Unavailable for legal reasons

No description available for this page.

Title Length29 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

robots.txt

122 rules

Sitemap reference found

Sponsored

A+

Security Score

98%Excellent

Static / Informational

HTTPS

No WAF

70d

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

Valid From

28.01.2026

Valid Until

28.04.2026

Subject Alternative Names (2)

sfweekly.comwww.sfweekly.com

SHA-256 Fingerprint

6C:22:76:E7:6D:15:CE:42:1A:FA:A7:B0:54:C5:59:8D:2D:8C:F0:2A...

Upgrade to view header details

HTTP Headers

Developer Console

age

41401

cache-control

🟡 10s(public, max-age=10)

content-encoding

📦 Gzip(gzip)

content-length

1612

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

aspmx3.googlemail.com

+1 more

Domain Information

sfweekly.com

Domain Age

30y 11m

Created

09.03.1995

Expires

10.03.2026

Last Updated

10.03.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Times New Roman

83/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

32px

16px

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

✅ Strong hierarchy: Headlines are 2.0x 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.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

SegmentEnterprise

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)dustydime.com(2)cdn.segment.com(1)

Sponsored

Last analyzed: 17 Feb 2026 at 10:14

Historical Analysis & Change Tracking