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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redditinc.com

https://redditinc.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

redditinc.com

Mobile

Sponsored

Hosting Provider

HubSpot CMS

hubspot.com

IP Address

199.60.103.41

Server Location

🇺🇸 Cambridge, United States

ASN

AS209242

Organization

HubSpot, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1531.awsdns-63.org.ns-1938.awsdns-50.co.uk.ns-47.awsdns-05.com.ns-945.awsdns-54.net.

Performance

Page Speed

1000 KB

61 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

HubSpot CMS

Technology Stack

7 Technologies Detected

Libraries

CSS Frameworks

Analytics

Tag Managers

Marketing

Customer Support

CDN

SEO Analysis

B70/100

redditinc.comredditinc.com

Reddit Inc Homepage

Homepage - Reddit

Title Length19 chars

Recommended: 50-60 chars

Description Length18 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

6 rules

Sponsored

Security Score

76%Good

Interactive

HTTPS

WAF

39d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

31.12.2025

Valid Until

31.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

c1af1c8e.sni.cloudflaressl.comredditinc.com

SHA-256 Fingerprint

2C:35:8E:E4:51:0A:21:19:DF:C2:87:5D:63:DC:A0:01:02:B6:79:BA...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-credentials

false

age

2074

alt-svc

h3=":443"; ma=86400

cache-control

🟡 5s(s-maxage=36000,max-age=5)

cache-tag

CT-175465010272,CT-177402199151,CG-40687240,P-40687240,W-175...

cf-cache-status

HIT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

Domain Information

redditinc.com

Domain Age

8y 4m

Created

19.10.2017

Expires

19.10.2027

Last Updated

17.09.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

RedditDisplay-ExtraBold + Reddit Sans

80/100

Readability

/30

40/40

20px · LH 1.44

Hierarchy

/20

25/25

3.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

RedditDisplay-ExtraBold

Sans70px

Body Font

Reddit Sans

Sans20px

Contrast Ratio

Reading Comfort

~110 CPL

Needs attention

70px

48px

40px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.44 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

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

⚠️ Wide lines: ~110 chars/line. Consider max-width for better reading flow.

⚠️ Cramped layout: 12 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

fast.wistia.com(4)local(4)redditinc.com(3)js.hs-analytics.net(1)js.hscollectedforms.net(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube Reddit

Sponsored

Last analyzed: 20 Feb 2026 at 03:53

Historical Analysis & Change Tracking