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libtiff.org

https://libtiff.org· First analyzed 19 May 2026· Updated 19 May 2026
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libtiff.org
Desktop screenshot of libtiff.org
Mobile screenshot of libtiff.org
Mobile

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Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

34.16.178.244

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Las Vegas, United States

ASN

AS396982

Organization

Google Cloud (us-west4)

Nameservers

ns1.mainpine.com.fangorn.howardsilvan.com.ns2.mainpine.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
849 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
59 KB
9 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Google Cloud Platform

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

D50/100
13
8
1
Meta Tags7/15
Content11/12
Headings5/8
Technical10/21
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
L
libtiff.orglibtiff.org

LibTIFF - TIFF Library and Utilities — LibTIFF 4.7.1 documentation

No description available for this page.

Title Length66 chars

Recommended: 50-60 chars (~381px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

9 issues found

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Local SEO

Local Search Readiness

5/100
Poor
2 13 2

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

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AI & LLM Readiness

F39/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
0/25
Citation
7/25

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
code blocks
Text ratio:19%
Words:520
Token eff.:Optimal
Sections/1K:7.7
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary32w
Descriptive Headingsavg 1.5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
B
79/100
12
Passed
3
Critical
0
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
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.
69/100
A+
6 mg
CO₂e / view
59.2 KB
Page Weight
95%
Cleaner Than
New Visitor
7 mg
vs
Returning (cached)
3 mg
Annual (10K/mo)
720 g
Emission Segments
Data Center
<0.001 g
Network
2 mg
Device
4 mg
Resource Breakdown
JavaScript
10.6 KB
CSS
27.4 KB
HTML
21.2 KB
Green Hosting Verified
Google Cloud
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

26%Critical
Interactive

HTTPS

No WAF

272d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.01.2026

Valid Until

15.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.gitlab.iogitlab.io

SHA-256 Fingerprint

DD:05:25:98:9E:21:80:A7:0E:04:6B:83:90:9B:B7:B3:3B:A4:B6:F7...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 600s(max-age=600)
content-length
21401
content-type
text/html; charset=utf-8
date
Tue, 19 May 2026 03:23:58 GMT
etag
"070d7ba42e4660e7d6a06783688d477ee68b84516e3f4331c53859a5858...
expires
Tue, 19 May 2026 03:33:58 UTC
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

mail.libtiff.org

Domain Information

libtiff.org

Domain Age
22y 7m

Created

27.09.2003

Expires

27.09.2033

Last Updated

05.08.2024

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

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.
D
51/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lucida Grande

WCAG Partial
55/100
Readability
/30
13/30

13px · LH 1.67

Hierarchy
/20
14/20

1.67x ratio

WCAG
/25
14/25

2.3:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Lucida Grande

Sans21px

Body Font

Lucida Grande

Sans13px

Contrast Ratio

2.3:1

11 issues

Reading Comfort

~59 CPL

Optimal (45–75)
21px
h1
14px
h3
14px
h4
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line length: ~59 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 23/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 2.3:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

Buy on MyFontsFlesch 23

Color Palette

7 unique colors
2.66:1 Fail Light
#ffffff
Background· 68.3%
#9d9f9e
Other· 4%
#bfd1d5
Primary· 13.1%
#f1eee8
Secondary· 4.1%
#dbd2be
Secondary· 2.4%

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Scripts & Styles

5 Resources

3
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

_static(3)

Website Identity

libtiff.org

22 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLCen

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Last analyzed: 19 May 2026 at 03:24

Historical Analysis & Change Tracking