tower.im

https://tower.im· First analyzed 15 May 2026· Updated 15 May 2026

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tower.im

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

43.109.101.5

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Helsinki, Finland

ASN

AS24429

Organization

Alibaba.com LLC

Server

Tengine

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

287 KB

35 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Alibaba Cloud

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Analytics

CSS Frameworks

Web Servers

SEO Analysis

D48/100

Meta Tags5/15

Content7/12

Headings0/8

Technical13/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

tower.imtower.im

Tower - ONES 旗下团队协作工具

Tower 帮助你更高效的安排工作任务，管理项目进度，沉淀团队知识，让每个人走得更快，让团队走得更远。

Title Length21 chars

Recommended: 50-60 chars (~135px / 580px)

Description Length51 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (3/3) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

286 URLs

robots.txt

57 rules

Sitemap reference found

Local SEO

Local Search Readiness

1/100

Poor

16 2

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

Sponsored

AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

6/25

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

navheader/footer

Text ratio:4%

Words:89

Token eff.:Too Short

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

57/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

9/20

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

4/15

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

5 recommendations

•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.

57/100

A+

36 mg

CO₂e / view

287.3 KB

Page Weight

90%

Cleaner Than

New Visitor

41 mg

Returning (cached)

20 mg

Annual (10K/mo)

4.3 kg

Emission Segments

Data Center

8 mg

Network

9 mg

Device

19 mg

Resource Breakdown

JavaScript

192.8 KB

Images

18.4 KB

CSS

68.9 KB

HTML

7.3 KB

Green Hosting Not Verified

Alibaba Cloud

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

46%Poor

Interactive

HTTPS

No WAF

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

18.04.2025

Valid Until

19.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.tower.imtower.im

SHA-256 Fingerprint

5D:AA:7A:ED:2B:CA:BE:FC:DA:30:AE:15:A8:77:75:81:72:9E:28:93...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Fri, 15 May 2026 19:15:50 GMT

eagleid

2ff62e9617788725500898525e

etag

W/"3ce29e62905ce8e9faf335ff70d3bf57"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

Domain Information

tower.im

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

50/100

Mobile Friendly

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, user-scalable=no

5 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

63/100

Readability

/30

20/30

14px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

13/25

2.28:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

-apple-system

Body Font

-apple-system

Sans14px

Contrast Ratio

2.28:1

7 issues

Reading Comfort

Single Family

left aligned

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.3:1).

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Color Palette

6 unique colors

6.93:1 AA Light

#ffffff

Primary· 86.90000000000002%

#5a5a56

Other· 3.2%

#bddadc

Secondary· 3.3%

#eaa763

Accent· 2.5%

#81b0ae

Secondary· 2.5%

#ede3d8

Secondary· 1.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)unpkg.zhimg.com(1)cdn4.mxpnl.com(1)google-analytics.com(1)hm.baidu.com(1)

Website Identity

tower.im

Location detected: 🇫🇮 Finlandvia ip

Sponsored

Last analyzed: 15 May 2026 at 19:16

Historical Analysis & Change Tracking