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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vectorstock.com

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

Export

vectorstock.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

18.165.122.55

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

CloudFront

CDN

CloudFront

Nameservers

ns-1594.awsdns-07.co.uk.ns-81.awsdns-10.com.ns-840.awsdns-41.net.ns-1260.awsdns-29.org.

Performance

Page Speed

248 KB

86 requests

Image Optimization

Lazy LoadWebPAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

CDN

SEO Analysis

A+94/100

vectorstock.comvectorstock.com

Premium Royalty-Free Vector Images | VectorStock

Download high-quality, royalty-free vector images. Scalable, editable artwork in AI, EPS & SVG formats — perfect for print, web, and commercial use.

Title Length48 chars

Recommended: 50-60 chars

Description Length148 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

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Crawlability

Sitemap

Type: index

8 URLs

robots.txt

16 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

188d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

31.07.2025

Valid Until

27.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

vectorstock.com*.vectorstock.com

SHA-256 Fingerprint

B5:33:35:69:14:2B:5B:80:FF:A5:D3:E9:FF:3B:28:DB:B6:71:F1:12...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Fri, 20 Feb 2026 01:26:04 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

vectorstock.com

Domain Age

20y 7m

Created

06.07.2005

Expires

06.07.2031

Last Updated

06.07.2021

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

VectorStockSans800 + sans-serif

68/100

Readability

/30

32/40

19px · LH 1.30

Hierarchy

/20

20/25

1.77x ratio

WCAG

/25

11/15

Contrast: undefined

Performance

/25

10/20

4 fonts

Heading Font

VectorStockSans800

Sans34px

Body Font

sans-serif

Sans19px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

34px

16px

24px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ 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.

⚠️ Cramped layout: 79 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Crazy EggSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

script.crazyegg.com(2)googletagmanager.com(2)linkconnector.com(2)google-analytics.com(1)public.profitwell.com(1)

Website Identity

Facebook X (Twitter)Pinterest

Sponsored

Last analyzed: 20 Feb 2026 at 01:26

Historical Analysis & Change Tracking