At least one JSON-LD block with @type and no unreadable blocks
JSON-LD describes entities and relationships in a machine-readable form. Parsing JSON is separate from validating required search feature properties.
Recommended action
Match markup to visible content and validate it with a rich result testing tool. Eligibility does not guarantee display.
Targets and suggested changes
Targethttps://chamc.co.kr/
Response HTML <head> / script[type=application/ld+json]
Use the example JSON in an application/ld+json script only when it matches the page. Fix existing JSON syntax first and validate any rich-result requirements separately.
View evidence and example changes
Observed content
0
Example - adapt to the actual content and environment
There are no warning or unknown checks in this section.
Sharing metadataExpand
og:title
인간존중, 생명사랑을 실천하는 연구중심의 글로벌 종합병원입니다.
og:description
인간존중, 생명사랑을 실천하는 연구중심의 글로벌 종합병원입니다.
og:type
website
og:image
/asset/img/kakao_img.jpg
Structured data0 types
No parseable JSON-LD was found.
02
Content and images
5 checks
Headings
Passed
H1 1 / H2 1 / H3 2
Headings organize a page into a main topic and supporting sections. This tool checks for one H1 and shows the saved H2-H6 structure.
Keep in mind
Use H1 for the main subject and H2/H3 for logical subsections, rather than selecting levels for visual size alone.
Image alt
Needs review
6 images; 0 with non-empty alt; 6 empty or missing
Alternative text conveys an image’s meaning. The count includes images with non-empty alt text.
Recommended action
Describe informative images in context. Empty alt="" can be appropriate for decorative images, so inspect their purpose before changing them.
Targets and suggested changes
Targethttps://chamc.co.kr/asset/img/map.png
HTML response line 76 · /html/body/div/div[2]/div[1]/div/div/div[2]/img
Find the img tag using this URL. Describe informative content, or explicitly use empty alt for a decorative image. The text below is a placeholder; preserve existing classes, dimensions and other attributes.
View evidence and example changes
Observed content
<img src="/asset/img/map.png" alt="">
Example - adapt to the actual content and environment
<img src="https://chamc.co.kr/asset/img/map.png" alt="Describe the actual image content">
For a decorative image:
<img src="https://chamc.co.kr/asset/img/map.png" alt="">
HTML response line 159 · /html/body/div/div[2]/div[2]/div/div[2]/dl[2]/dd/div[2]/a/div[1]/img
Find the img tag using this URL. Describe informative content, or explicitly use empty alt for a decorative image. The text below is a placeholder; preserve existing classes, dimensions and other attributes.
Example - adapt to the actual content and environment
<img src="https://wmanager.chamc.co.kr/file/cboard/101/4044.jpg" alt="Describe the actual image content">
For a decorative image:
<img src="https://wmanager.chamc.co.kr/file/cboard/101/4044.jpg" alt="">
Targethttps://chamc.co.kr/asset/img/group.png
HTML response line 192 · /html/body/div/div[2]/div[3]/div/div[1]/div/div[2]/div[1]/img
Find the img tag using this URL. Describe informative content, or explicitly use empty alt for a decorative image. The text below is a placeholder; preserve existing classes, dimensions and other attributes.
View evidence and example changes
Observed content
<img src="/asset/img/group.png" alt="">
Example - adapt to the actual content and environment
<img src="https://chamc.co.kr/asset/img/group.png" alt="Describe the actual image content">
For a decorative image:
<img src="https://chamc.co.kr/asset/img/group.png" alt="">
Targethttps://chamc.co.kr/asset/img/newsroom.png
HTML response line 199 · /html/body/div/div[2]/div[3]/div/div[1]/div/div[2]/div[2]/img
Find the img tag using this URL. Describe informative content, or explicitly use empty alt for a decorative image. The text below is a placeholder; preserve existing classes, dimensions and other attributes.
View evidence and example changes
Observed content
<img src="/asset/img/newsroom.png" alt="">
Example - adapt to the actual content and environment
<img src="https://chamc.co.kr/asset/img/newsroom.png" alt="Describe the actual image content">
For a decorative image:
<img src="https://chamc.co.kr/asset/img/newsroom.png" alt="">
HTML response line 245 · /html/body/div/div[2]/div[4]/div/img
Find the img tag using this URL. Describe informative content, or explicitly use empty alt for a decorative image. The text below is a placeholder; preserve existing classes, dimensions and other attributes.
View evidence and example changes
Observed content
<img src="/asset/img/icon_scroll.png" alt="">
Example - adapt to the actual content and environment
<img src="https://chamc.co.kr/asset/img/icon_scroll.png" alt="Describe the actual image content">
For a decorative image:
<img src="https://chamc.co.kr/asset/img/icon_scroll.png" alt="">
6 targets; the first five are shown. Review the full saved list in the details below.
Language
Needs review
The expected configuration was not detected.
The html lang attribute identifies the document’s primary language and helps assistive software select pronunciation.
Recommended action
Match lang to the main content and mark passages written in another language as appropriate.
Targets and suggested changes
Targethttps://chamc.co.kr/
html[lang]
Set the html lang attribute to the actual primary language; the example must match your content.
View evidence and example changes
Example - adapt to the actual content and environment
<html lang="en">
Charset
Passed
utf-8
The encoding declaration tells clients how to decode text. It must match the actual response bytes.
Keep in mind
Keep the HTTP or HTML charset declaration consistent with the file encoding; use UTF-8 for UTF-8 content.
Text/HTML ratio
Needs review
5.16%
Tool reference range 15-70%; not an official ranking threshold.
This compares visible text length with HTML length. It cannot determine content quality or rankings on its own.
Recommended action
Do not add filler text to target a ratio. Check for useful HTML content and unnecessary markup.
Targets and suggested changes
Targethttps://chamc.co.kr/
main / body
Check whether main content exists in the initial HTML. Consider server rendering for missing core text; do not add filler to target a ratio.
View evidence and example changes
Observed content
5.16%
There are no warning or unknown checks in this section.
Heading structure
Saved headings, up to 50 per level. Expand the H2-H6 lists when needed.
H11
H21
H32
H40
H50
H60
H1
차병원 · 바이오그룹
H2 1View headings
Global Medical Network
H3 2View headings
차병원
차바이오그룹
Images and alternative text6 saved
Up to 100 images are saved. Review an image’s purpose when its alt text is empty.
HTML response line 157 · /html/body/div/div[2]/div[2]/div/div[2]/dl[2]/dd/div[2]/a
The query string or underscore triggers this heuristic. Remove tracking-only utm_* parameters from internal links when appropriate. Keep functional parameters. If a path changes, update internal links and redirect the old URL.
This detects WebP/AVIF from img src/srcset extensions and picture source types. Images whose format cannot be inferred from HTML, such as extensionless CDN URLs, may not be reflected in the count.
Recommended action
Compare quality and file size, and inspect the actual delivered format in browser developer tools.
Targets and suggested changes
Targethttps://chamc.co.kr/asset/img/map.png
HTML response line 76 · /html/body/div/div[2]/div[1]/div/div/div[2]/img
Convert this file to WebP/AVIF and use the actual converted URL. Do not merely rename its extension. Keep it if the CDN already serves a modern format.
View evidence and example changes
Observed content
<img src="/asset/img/map.png" alt="">
Example - adapt to the actual content and environment
HTML response line 159 · /html/body/div/div[2]/div[2]/div/div[2]/dl[2]/dd/div[2]/a/div[1]/img
Convert this file to WebP/AVIF and use the actual converted URL. Do not merely rename its extension. Keep it if the CDN already serves a modern format.
HTML response line 192 · /html/body/div/div[2]/div[3]/div/div[1]/div/div[2]/div[1]/img
Convert this file to WebP/AVIF and use the actual converted URL. Do not merely rename its extension. Keep it if the CDN already serves a modern format.
View evidence and example changes
Observed content
<img src="/asset/img/group.png" alt="">
Example - adapt to the actual content and environment
HTML response line 199 · /html/body/div/div[2]/div[3]/div/div[1]/div/div[2]/div[2]/img
Convert this file to WebP/AVIF and use the actual converted URL. Do not merely rename its extension. Keep it if the CDN already serves a modern format.
View evidence and example changes
Observed content
<img src="/asset/img/newsroom.png" alt="">
Example - adapt to the actual content and environment
HTML response line 245 · /html/body/div/div[2]/div[4]/div/img
Convert this file to WebP/AVIF and use the actual converted URL. Do not merely rename its extension. Keep it if the CDN already serves a modern format.
View evidence and example changes
Observed content
<img src="/asset/img/icon_scroll.png" alt="">
Example - adapt to the actual content and environment
This file is referenced by the page. Find duplicate tags and remove or conditionally load files that are unused here. File count alone does not establish a defect in this file.
This file is referenced by the page. Find duplicate tags and remove or conditionally load files that are unused here. File count alone does not establish a defect in this file.
This file is referenced by the page. Find duplicate tags and remove or conditionally load files that are unused here. File count alone does not establish a defect in this file.
This file is referenced by the page. Find duplicate tags and remove or conditionally load files that are unused here. File count alone does not establish a defect in this file.
This file is referenced by the page. Find duplicate tags and remove or conditionally load files that are unused here. File count alone does not establish a defect in this file.
7 targets; the first five are shown. Review the full saved list in the details below.
Compression
Needs review
The expected configuration was not detected.
This checks the HTML Content-Encoding header. Compression can reduce transfer size, with savings depending on the response.
Recommended action
Review text compression on the server or CDN, treating already compressed image formats separately.
Targets and suggested changes
Targethttps://chamc.co.kr/
Server / CDN compression settings
Enable actual gzip/Brotli compression for this response and verify transfer size. Do not manually add Content-Encoding without compressing the body.
View evidence and example changes
Example - adapt to the actual content and environment
Content-Encoding: gzip
Security headers
Needs review
0/6
Tool heuristic: at least 3 of 6 selected headers present
This detects selected security-related response headers. Their count does not establish policy quality or protection.
Recommended action
Review CSP, HSTS and other values for the application, then test for blocked resources or broken functionality.
Targets and suggested changes
Targethttps://chamc.co.kr/
Web server / CDN response headers
These headers were absent. Configure response headers in the actual server/CDN settings: .htaccess or VirtualHost for Apache, or the Nginx server block. Validate the two example headers first; design CSP/HSTS for the real resources and HTTPS policy. The actual server configuration path is not visible to this tool.
The external service is unavailable. Please try again later.
06
Search and AI crawlers
4 checks
Robots.txt
Passed
robots.txt
This checks the robots.txt response. File presence does not verify all crawler permissions or actual indexing.
Keep in mind
Review bot and path rules for your intended policy. Protect private information with authentication and access controls.
XML Sitemap
Passed
https://chamc.co.kr/sitemap.xml
This detects a sitemap format at a declared or default URL. It does not crawl and validate every listed URL.
Keep in mind
Include intended canonical URLs and meaningful update dates. Declare a custom sitemap location in robots.txt.
llms.txt
Needs review
The expected configuration was not detected.
This checks for a text response at /llms.txt. Its presence does not guarantee use by an AI service or search visibility.
Recommended action
If you publish one, describe public resources accurately and keep its content and links current.
Targets and suggested changes
Targethttps://chamc.co.kr/llms.txt
/llms.txt
If desired, publish UTF-8 text at the root and add real public documentation links. This is optional.
View evidence and example changes
Example - adapt to the actual content and environment
# 참 좋은 병원, 차병원
- [Home](https://chamc.co.kr/)
AI crawlers
Passed
AI search/answer bots allowed 5/5 · training bots allowed 3/3
Passes when every AI search/answer bot is allowed; training bots are shown for reference only
This interprets root-path robots.txt rules for five AI search/answer bots (which read pages to cite them in answers) and three training bots. Only the search/answer bots decide the result; training bots are shown for reference. Actual citations are not checked.
Keep in mind
Allow the search/answer bots if you want to be cited in AI answers. Blocking training crawlers is a policy choice and does not affect this result.
There are no warning or unknown checks in this section.
Bot access to the root path
OAI-SearchBot Search/answerAllowed
ChatGPT-User Search/answerAllowed
Claude-SearchBot Search/answerAllowed
Claude-User Search/answerAllowed
PerplexityBot Search/answerAllowed
GPTBot TrainingAllowed
ClaudeBot TrainingAllowed
Google-Extended TrainingAllowed
robots.txt sourceExpand
User-agent: Yeti
Allow: /
07
PageSpeed Insights
External performance test
Run Google Lighthouse performance, accessibility, best practices and SEO checks. Device-specific results are cached for one day and are separate from the overall score above.