Catalog / ysipo.com.tw
69

SEO audit for ysipo.com.tw

永旭智慧財產事務所 | 電子博士主持.25 年精品智財服務

other

Health 69/100 (fair) · 20 pages crawled · generated 2026-07-29

Download Markdown report (feed to ChatGPT / Claude / Cursor)

永旭智慧財產事務所 — 電子博士主持,工研院專利撰稿訓練,多次榮獲台灣商標申請量前 20 大事務所。提供專利撰稿、商標申請與爭議救援、著作權登記等精品智財服務,高雄總部、台北分所。

Screenshot of ysipo.com.tw
20
pages crawled
20
indexable pages
0
errors
22
warnings
155
notices
1
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Content 88 0 8 16
Hreflang 88 0 8 0
Titles 97 0 2 0
Canonical 99 0 1 3
Duplicate 99 0 1 0
Links 99 0 1 0
Structured Data 99 0 1 12
Agent Readiness 100 0 0 1
Cache 100 0 0 20
Images 100 0 0 14
Meta Description 100 0 0 7
Performance 100 0 0 52
Security 100 0 0 20
Sitemap 100 0 0 7
Social 100 0 0 3
Findings

Warnings (7 rules)

warning Interior page canonicalizes to the homepage

Rule canonical.points_to_homepage · Canonical · 1 occurrence(s)

  • https://ysipo.com.tw/index.html — this interior page canonicalizes to the homepage (https://ysipo.com.tw/) — Google will treat the homepage as authoritative and drop this page from search. Point the canonical at the page's own URL.

warning Thin content (low word count)

Rule content.thin · Content · 8 occurrence(s)

warning Homepage duplicated across protocol/host variants (no redirect)

Rule duplicate.protocol_host · Duplicate · 1 occurrence(s)

  • https://ysipo.com.tw/ — http://ysipo.com.tw/ serves the same homepage content with a 200 and no redirect — Google sees a duplicate. Pick one canonical host/scheme and 301-redirect the others.

warning hreflang has no return link (not reciprocal)

Rule hreflang.no_return · Hreflang · 8 occurrence(s)

warning Orphan page (no internal inlinks)

Rule links.orphan · Links · 1 occurrence(s)

warning Schema describes content not visible on the page

Rule schema.hidden_content · Structured Data · 1 occurrence(s)

  • https://ysipo.com.tw/en/contact.html — a schema name/headline ("Yong Syu Intellectual Property Office") does not appear in the page's visible text — Google's policies prohibit marking up content not visible to readers. This is a heuristic (a static-HTML substring check): JS-rendered or abbreviated names can be false positives, so verify before removing.

warning Title likely truncated in SERP (too wide)

Rule title.too_long · Titles · 2 occurrence(s)

Notices (18 rules)

notice No llms.txt for AI agents

Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)

  • https://ysipo.com.tw/ — no llms.txt found at the site root — add one so AI agents get a curated site summary

notice Page served uncached (no-store/private or CDN bypass)

Rule cache.not_cacheable · Cache · 20 occurrence(s)

notice Canonical target reachable only via a canonical tag (no inlinks)

Rule canonical.isolated_url · Canonical · 1 occurrence(s)

  • https://ysipo.com.tw/ — this URL is a canonical target but has no internal links pointing to it — crawlers only learn of it via the canonical tag. Add direct internal links (or list it in the sitemap).

notice Canonical points to a different URL

Rule canonical.non_self · Canonical · 2 occurrence(s)

notice Main text is hard to read (low Flesch Reading Ease)

Rule content.readability_poor · Content · 10 occurrence(s)

  • https://ysipo.com.tw/en/ — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/about.html — this page reads as very difficult (Flesch Reading Ease 24, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/contact.html — this page reads as difficult (Flesch Reading Ease 47, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/index.html — this page reads as very difficult (Flesch Reading Ease 22, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/insights.html — this page reads as very difficult (Flesch Reading Ease 26, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/insights/article-1.html — this page reads as very difficult (Flesch Reading Ease 21, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/insights/article-2.html — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/insights/article-3.html — this page reads as very difficult (Flesch Reading Ease 26, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/news.html — this page reads as very difficult (Flesch Reading Ease 15, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://ysipo.com.tw/en/services.html — this page reads as very difficult (Flesch Reading Ease -9, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 16 occurrence(s)

  • https://ysipo.com.tw/ — the likely hero/LCP image (logo-white.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/about.html — the likely hero/LCP image (lee-principal.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/contact.html — the likely hero/LCP image (line-qr-code.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/ — the likely hero/LCP image (logo-white.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/about.html — the likely hero/LCP image (lee-principal.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/contact.html — the likely hero/LCP image (line-qr-code.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/index.html — the likely hero/LCP image (logo-white.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/insights.html — the likely hero/LCP image (article1.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/insights/article-1.html — the likely hero/LCP image (article1.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/insights/article-2.html — the likely hero/LCP image (article2.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/en/insights/article-3.html — the likely hero/LCP image (article3.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/index.html — the likely hero/LCP image (logo-white.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/insights.html — the likely hero/LCP image (article1.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/insights/article-1.html — the likely hero/LCP image (article1.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/insights/article-2.html — the likely hero/LCP image (article2.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
  • https://ysipo.com.tw/insights/article-3.html — the likely hero/LCP image (article3.jpg) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.

notice Images without width/height (layout shift / CLS)

Rule images.missing_dimensions · Images · 14 occurrence(s)

notice Legacy <meta name=keywords> tag present (Google ignores it)

Rule meta.keywords_present · Content · 6 occurrence(s)

notice Meta description too long

Rule meta_desc.too_long · Meta Description · 6 occurrence(s)

notice Meta description too short

Rule meta_desc.too_short · Meta Description · 1 occurrence(s)

notice Legacy image format (jpg/png/gif) with no next-gen fallback

Rule perf.images_legacy_format · Performance · 16 occurrence(s)

  • https://ysipo.com.tw/ — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/about.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/contact.html — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/ — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/about.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/contact.html — 1 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/index.html — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/insights.html — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/insights/article-1.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/insights/article-2.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/en/insights/article-3.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/index.html — 7 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/insights.html — 3 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/insights/article-1.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/insights/article-2.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://ysipo.com.tw/insights/article-3.html — 2 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.

notice No ETag header (no conditional GET for unchanged pages)

Rule perf.no_etag · Performance · 20 occurrence(s)

  • https://ysipo.com.tw/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/about.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/contact.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/about.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/contact.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/index.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/insights.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/insights/article-1.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/insights/article-2.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/insights/article-3.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/news.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/en/services.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/index.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/insights.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/insights/article-1.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/insights/article-2.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/insights/article-3.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/news.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
  • https://ysipo.com.tw/services.html — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.

notice Article schema missing recommended properties (Top Stories / image carousel)

Rule schema.article_incomplete · Structured Data · 3 occurrence(s)

  • https://ysipo.com.tw/en/insights/article-1.html — Article structured data is missing recommended property (image) — these feed Top Stories and image-carousel eligibility. Google defines no required Article properties, so this is advisory: add author, headline, image and datePublished where they apply.
  • https://ysipo.com.tw/en/insights/article-2.html — Article structured data is missing recommended property (image) — these feed Top Stories and image-carousel eligibility. Google defines no required Article properties, so this is advisory: add author, headline, image and datePublished where they apply.
  • https://ysipo.com.tw/en/insights/article-3.html — Article structured data is missing recommended property (image) — these feed Top Stories and image-carousel eligibility. Google defines no required Article properties, so this is advisory: add author, headline, image and datePublished where they apply.

notice Deep page has no BreadcrumbList structured data

Rule schema.breadcrumb_missing · Structured Data · 3 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 20 occurrence(s)

notice Indexable page not listed in sitemap

Rule sitemap.orphan_not_listed · Sitemap · 7 occurrence(s)

Pages (showing 20 of 20)
URLStatusIndexableWordsIn-links
https://ysipo.com.tw/en/index.html
Yong Syu Intellectual Property Office | Patent · Trademark · Copyright
200 yes 726 12
https://ysipo.com.tw/index.html
永旭智慧財產事務所 | 電子博士主持.25 年精品智財服務
200 yes 176 12
https://ysipo.com.tw/contact.html
聯絡我們 | 永旭智慧財產事務所
200 yes 114 9
https://ysipo.com.tw/en/contact.html
Contact YSIPO | Kaohsiung & Taipei IP Law Firm — Yong Syu IP Office
200 yes 234 9
https://ysipo.com.tw/en/insights.html
IP Insights | Yong Syu Intellectual Property Office
200 yes 439 6
https://ysipo.com.tw/insights.html
智財知識專欄 | 永旭智慧財產事務所
200 yes 101 6
https://ysipo.com.tw/en/insights/article-1.html
5 Key Elements of Patent Specification Writing | Yong Syu IP Office
200 yes 1062 5
https://ysipo.com.tw/en/insights/article-2.html
Received a Trademark Refusal? 3 Complete Remedies Explained | Yong Syu IP Office
200 yes 1011 5
https://ysipo.com.tw/en/insights/article-3.html
Complete Guide to PCT International Patent Filing | Yong Syu IP Office
200 yes 1103 5
https://ysipo.com.tw/insights/article-1.html
專利說明書撰寫的 5 個關鍵要素 | 永旭智慧財產事務所
200 yes 140 5
https://ysipo.com.tw/insights/article-2.html
商標核駁收到了怎麼辦?三種救濟途徑完整解析 | 永旭智慧財產事務所
200 yes 116 5
https://ysipo.com.tw/insights/article-3.html
PCT 國際專利申請完全指南:從台灣出發布局全球 | 永旭智慧財產事務所
200 yes 213 5
https://ysipo.com.tw/en/services.html
IP Services | Patent · Trademark · Copyright · Strategy — Yong Syu IP Office
200 yes 677 4
https://ysipo.com.tw/services.html
服務項目 | 專利・商標・著作權・智財策略顧問 — 永旭智慧財產事務所
200 yes 182 4
https://ysipo.com.tw/about.html
關於永旭 | 電子博士主持.25 年精品智財事務所 — 永旭智慧財產事務所
200 yes 267 2
https://ysipo.com.tw/en/about.html
About YSIPO | Electronics PhD-Led IP Firm Since 2010 — Yong Syu IP Office
200 yes 627 2
https://ysipo.com.tw/en/news.html
News & Updates | Yong Syu Intellectual Property Office
200 yes 440 2
https://ysipo.com.tw/news.html
新聞動態 | 永旭智慧財產事務所
200 yes 193 2
https://ysipo.com.tw/
永旭智慧財產事務所 | 電子博士主持.25 年精品智財服務
200 yes 176 0
https://ysipo.com.tw/en/
Yong Syu Intellectual Property Office | Patent · Trademark · Copyright
200 yes 726 0

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