What technology does 591.com.tw use?

591.com.tw is built with PHP, Bootstrap, jQuery, Google Analytics.

Is 591.com.tw secure (HTTPS)?

Yes. 591.com.tw uses TLS 1.3 with a certificate issued by TAIWAN-CA, valid until Oct 15, 2026.

Who hosts 591.com.tw?

Hosting provider information for 591.com.tw is not available yet.

What is 591.com.tw's SEO score?

591.com.tw scored 75/100 for SEO in the latest analysis (fair).

What is 591.com.tw's overall website score?

591.com.tw has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

Has 591.com.tw's score changed over time?

591.com.tw's overall score has stayed steady at 88/100 since Jul 26, 2026.

591.com.tw

591房屋交易網 | 租屋買屋實價登錄資訊平台

Last scanned Aug 2, 2026, 6:00 PM · 10 views

Overall score

Great

Summary

591房屋交易網是全台灣領先的房地產交易資訊平台之一, 提供新建案、中古屋、租屋、店面等交易資訊,每日90萬人在線找屋，資訊豐富齊全。更有實價登錄、房產新聞��… This website uses Google Analytics behind CloudFront CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

591房屋交易網是全台灣領先的房地產交易資訊平台之一, 提供新建案、中古屋、租屋、店面等交易資訊,每日90萬人在線找屋，資訊豐富齊全。更有實價登錄、房產新聞分析，是您買屋、賣屋、租屋首選網站！

Top issues to fix

7 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
6 cookies without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

4 issue(s) found

Performance

585 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

0 overall since Jul 26, 2026

Overall: 88
SEO: 75
Security: 90
Performance: 90
Accessibility: 100

Organization

Company details published in this site's own structured data.

Facebook

Contact

Email, phone, and address published on this site's own pages.

Email: dzq@addcn.com service@591.com.tw

Meta tags

Title: 591房屋交易網 | 租屋買屋實價登錄資訊平台
Description: 591房屋交易網是全台灣領先的房地產交易資訊平台之一, 提供新建案、中古屋、租屋、店面等交易資訊,每日90萬人在線找屋，資訊豐富齊全。更有實價登錄、房產新聞分析，是您買屋、賣屋、租屋首選網站！
Canonical: https://www.591.com.tw
Language: zh-TW
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta: index,follow
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP Bootstrap jQuery Google Analytics

Hosting & CDN

Hosting provider: —
CDN provider: CloudFront
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: TAIWAN-CA
Subject: *.591.com.tw
Valid from: Oct 15, 2025
Valid to: Oct 15, 2026
Days until expiry: 73
SAN domains: *.591.com.tw, 591.com.tw

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 6 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 15

Links

30 internal · 692 external · 20 broken

Images

49 total · 4 missing alt

Scripts / Styles

50 scripts · 16 stylesheets

JS / CSS size

73.9 KB · 12.5 KB

Page size

322 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Meta description longer than 160 characters
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://591.com.tw
Final URL: https://www.591.com.tw/
HTTP status: 200
HTTP version: HTTP/2
Response time: 579 ms
HTML size: 322 KB
Redirect chain: https://591.com.tw → https://www.591.com.tw/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does 591.com.tw use?: 591.com.tw is built with PHP, Bootstrap, jQuery, Google Analytics.
Is 591.com.tw secure (HTTPS)?: Yes. 591.com.tw uses TLS 1.3 with a certificate issued by TAIWAN-CA, valid until Oct 15, 2026.
Who hosts 591.com.tw?: Hosting provider information for 591.com.tw is not available yet.
What is 591.com.tw's SEO score?: 591.com.tw scored 75/100 for SEO in the latest analysis (fair).
What is 591.com.tw's overall website score?: 591.com.tw has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
Has 591.com.tw's score changed over time?: 591.com.tw's overall score has stayed steady at 88/100 since Jul 26, 2026.