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one-tab.com

https://one-tab.com· First analyzed 08 May 2026· Updated 08 May 2026
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one-tab.com
Desktop screenshot of one-tab.com
Mobile screenshot of one-tab.com
Mobile

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Hosting Provider

OVHcloud
ovhcloud.com

IP Address

198.50.158.152

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS16276

Organization

OVH Hosting, Inc.

Nameservers

ns-cloud-b2.googledomains.com.ns-cloud-b4.googledomains.com.ns-cloud-b3.googledomains.com.ns-cloud-b1.googledomains.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
634 ms10%
Speed Index
824 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
234 KB
15 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
OVHcloud

Technology Stack

3 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Fonts

1
Google Fonts

SEO Analysis

D53/100
17
6
4
Meta Tags4/15
Content10/12
Headings0/8
Technical21/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
O
one-tab.comone-tab.com

OneTab extension for Google Chrome and Firefox - save up to 95% mem...

No description available for this page.

Title truncated.
Title Length93 chars

Recommended: 50-60 chars (~584px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

  • • Title is too long (93 chars, ~584px). Will be truncated in search results.
  • • 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
robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

18/100
Poor
5 13

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.
8/25
Schema Data
2/25
Citation
5/25

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.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:13%
Words:498
Token eff.:Optimal

Structured Data

1 JSON-LD
Organization×1.1

Citation Readiness

Opening Summary152w
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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.
D
50/100
7
Passed
5
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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
14/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
74/100
A+
24 mg
CO₂e / view
233.8 KB
Page Weight
95%
Cleaner Than
New Visitor
27 mg
vs
Returning (cached)
14 mg
Annual (10K/mo)
2.8 kg
Emission Segments
Data Center
1 mg
Network
7 mg
Device
16 mg
Resource Breakdown
JavaScript
3.5 KB
Images
219.7 KB
CSS
3.1 KB
Fonts
2.2 KB
HTML
5.2 KB
Green Hosting Verified
OVHcloud
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

98%Excellent
Static / Informational

HTTPS

No WAF

50d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

29.03.2026

Valid Until

27.06.2026

Subject Alternative Names (2)

*.one-tab.comone-tab.com

SHA-256 Fingerprint

F9:BD:68:E1:AC:D4:12:0C:E3:0A:EF:40:4C:F6:67:FA:94:CC:F3:27...

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self';script-src 'self' https://*.googletagmana...
content-type
text/html;charset=utf-8
cross-origin-opener-policy
same-origin
cross-origin-resource-policy
same-origin
date
Fri, 08 May 2026 10:59:29 GMT
Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt3.aspmx.l.google.com
alt2.aspmx.l.google.com
aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

one-tab.com

Domain Age
13y 2m

Created

15.02.2013

Expires

15.02.2035

Last Updated

28.01.2026

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
C
63/100
Mobile Friendly1 breakpoint
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=1.0, maximum-scale=10.0, user-scalable=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans + Helvetica Neue

WCAG Partial
63/100
Readability
/30
16/30

14px · LH 1.85

Hierarchy
/20
9/20
WCAG
/25
19/25

2:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Open Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

2:1

1 issue

Reading Comfort

~91 CPL

Wide lines
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Wide line spacing (1.85). 1.4–1.6 is optimal for body text.

⚠️ Wide lines: ~91 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.0:1).

✅ System fonts: Zero font loading delay — best possible LCP impact.

GGoogle FontsFlesch 57

Color Palette

4 unique colors
Light
#fafafa
Background· 88.09999999999998%
#7797bc
Primary· 4.2%
#e4e6ec
Secondary· 4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

6 Resources

4
Scripts
2
Styles
1
Async
0
Defer

Top Script Sources

local(3)googletagmanager.com(1)

Website Identity

OneTab

OneTab

Organization
www.one-tab.com
13 years old
Location detected: 🇨🇦 Canadavia ip
NameCheap, Inc.📧 Google Workspaceen

Sponsored

Last analyzed: 08 May 2026 at 10:59

Historical Analysis & Change Tracking