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

hopin.com

https://hopin.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

hopin.com

Sponsored

Hosting Provider

Webflow

webflow.com

IP Address

198.202.211.1

Server Location

🇺🇸 San Francisco, United States

ASN

AS209242

Organization

Webflow, Inc

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

henry.ns.cloudflare.com.katja.ns.cloudflare.com.

Performance

Page Speed

51 KB

59 requests

Image Optimization

Lazy LoadWebPAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Webflow

CDN

Cloudflare

Technology Stack

11 Technologies Detected

Libraries

Analytics

UI Components

Other

AOS (Animate On Scroll)

CSS Frameworks

Fonts

Tag Managers

Advertising

CDN

SEO Analysis

B70/100

hopin.comhopin.com

Hopin is now RingCentral Events

Run engaging webinar and event experiences that reflect your brand, build community, and create a lasting impression on your audience.

Title Length31 chars

Recommended: 50-60 chars

Description Length134 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (27/27)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

71%Good

Interactive

HTTPS

WAF

83d

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

13.02.2026

Valid Until

14.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

hopin.com

SHA-256 Fingerprint

D6:E0:DF:F2:E1:57:AD:30:2E:C4:3A:21:6C:76:CB:AB:AB:9C:EF:7E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

230408

alt-svc

h3=":443"; ma=86400

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9d08bdaf28fdd2a1-FRA

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self'

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt2.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

hopin.com

Domain Age

27y 8m

Created

11.06.1998

Expires

10.06.2026

Last Updated

21.10.2024

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Osano

Cookie Consent Banner

Osano

GDPR Indicators

Cookie consent banner detected

CMP: Osano

Typography & Readability

Matter

68/100

Readability

/30

40/40

20px · LH 1.71

Hierarchy

/20

25/25

3.6x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Matter

Sans72px

Body Font

Matter

Sans20px

Contrast Ratio

Reading Comfort

~43 CPL

Needs attention

72px

48px

18px

20px

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

✅ Optimal line spacing: 1.71 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.6x 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 Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

opps-widget.getwarmly.com(3)googletagmanager.com(2)cdn.prod.website-files.com(2)snap.licdn.com(1)ajax.googleapis.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 19 Feb 2026 at 21:08

Historical Analysis & Change Tracking