iovisor.org

https://iovisor.org· First analyzed 04 Jun 2026· Updated 04 Jun 2026

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iovisor.org

Mobile

Sponsored

Hosting Provider

Pantheon

pantheon.io

IP Address

23.185.0.4

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ns2.dnsimple-edge.net.ns3.dnsimple-edge.io.ns4.dnsimple-edge.org.ns1.dnsimple-edge.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.4 s10%

Speed Index

1.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

646 KB

67 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv7.0

cms

Salient Child Themev1.0Custom

by ThemeNectar

View Theme

Technology Stack

14 Technologies Detected

Plugins

Salient Nectar Slider Salient Core Js_Composer_Salient

Libraries

CSS Frameworks

Analytics

Other

Icon Libraries

Fonts

Tag Managers

Web Servers

SEO Analysis

D54/100

Meta Tags4/15

Content8/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images5/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

iovisor.orgiovisor.org

IO Visor Project

No description available for this page.

Title Length16 chars

Recommended: 50-60 chars (~97px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F35/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

10/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:212

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary15w

Descriptive Headingsavg 20w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

88/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

10/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

44/100

80 mg

CO₂e / view

645.7 KB

Page Weight

80%

Cleaner Than

New Visitor

91 mg

Returning (cached)

46 mg

Annual (10K/mo)

9.6 kg

Emission Segments

Data Center

18 mg

Network

19 mg

Device

43 mg

Resource Breakdown

JavaScript

264.0 KB

Images

9.8 KB

CSS

324.8 KB

Fonts

3.9 KB

HTML

43.2 KB

Green Hosting Not Verified

Pantheon

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

29.05.2026

Valid Until

27.08.2026

Subject Alternative Names (20)

adlik.aialpha-omega.devalvarium.organgelml.aiaousd.orgautomatecompliance.orgcamaraproject.orgcd.foundation+12 more

SHA-256 Fingerprint

71:97:6C:12:A3:77:3B:F8:3B:1A:16:60:5E:1C:89:5D:C5:E3:6E:3F...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 60s(public, max-age=60, s-maxage=43200, stale-while-revalidate=8...)

content-encoding

📦 Gzip(gzip)

content-length

43975

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Forward Email

Score

SPF

DKIM

DMARC

MX Records (2)

mx2.forwardemail.net

mx1.forwardemail.net

Domain Information

iovisor.org

Domain Age

12y 11m

Created

20.06.2013

Expires

20.06.2026

Last Updated

11.05.2026

Registrar

1API GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

67/100

Mobile Friendly10 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto

WCAG Partial

51/100

Readability

/30

14/30

30px · LH 1.00

Hierarchy

/20

7/20

WCAG

/25

17/25

1.06:1 min contrast

Performance

/25

13/25

1 font · 5 req

Heading Font

Roboto

Sans

Body Font

Roboto

Sans30px

Contrast Ratio

1.06:1

7 issues

Reading Comfort

Single Font Family

left aligned

50px

22px

14px

30px

✅ Excellent readability: 30px body text is ideal for all devices.

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 2/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle FontsFlesch 2

Color Palette

7 unique colors

19.77:1 AAA Dark

#000000

Background· 47.9%

#f8f8f8

Background· 39.3%

#5e464b

Primary· 2.8%

#4d0716

Accent· 0.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

iovisor.org(17)googletagmanager.com(2)lfx-segment.platform.linuxfoundation.org(1)

Website Identity

iovisor.org

12 years old

Location detected: 🇺🇸 United Statesvia ip

1API GmbH📧 Forward Emailen-US

Social Profiles

Facebook X (Twitter)LinkedIn GitHub

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Last analyzed: 04 Jun 2026 at 06:23

Historical Analysis & Change Tracking