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

er25.ru

https://er25.ru· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

er25.ru

Sponsored

Hosting Provider

ISPIRIA Networks Ltd

IP Address

5.45.67.63

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS58061

Organization

ISPIRIA Networks Ltd

Server

Nginx

Nameservers

ns61.cloudns.net.pns61.cloudns.net.ns63.cloudns.net.pns63.cloudns.net.+4 more

Performance

Page Speed

121 KB

13 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

dver-servisperm.ruv1.0

by VeiDor

View Theme

Technology Stack

5 Technologies Detected

Plugins

CSS Frameworks

Web Servers

SEO Analysis

B76/100

er25.ruer25.ru

ВАВАДА Казино Официальный Сайт ✔️ VAVADA вход на рабочее зеркало

Вавада казино онлайн - играть на официальном зеркале казино Vavada ⚡️ без блокировок. Переходи на сайт и получи бонус за регистрацию! ⚡️ Vavada Casino вход н...

Description truncated.

Title Length64 chars

Recommended: 50-60 chars

Description Length170 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

4 URLs

robots.txt

26 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

60d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

22.01.2026

Valid Until

22.04.2026

Subject Alternative Names (2)

*.er25.ruer25.ru

SHA-256 Fingerprint

54:14:67:55:52:97:B6:73:61:C8:1F:4B:8E:CE:BB:9A:8F:1D:CC:3E...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

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 10:43:14 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

last-modified

Fri, 20 Feb 2026 10:43:13 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

er25.ru

Domain Age

29 days

Created

21.01.2026

Expires

21.01.2027

Registrar

SALENAMES-RU

DNSSEC

Not Enabled

Typography & Readability

Open Sans

61/100

Readability

/30

25/40

16px · LH 1.15

Hierarchy

/20

13/25

1.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Sans24px

Body Font

Open Sans

Sans16px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

24px

16px

Minor Second

Scale

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

⚠️ Tight line spacing (1.15). Consider 1.4-1.6 for better readability.

✅ Good hierarchy: Clear distinction between headlines and 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.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

er25.ru(3)

Sponsored

Last analyzed: 20 Feb 2026 at 10:43

Historical Analysis & Change Tracking