Headings organize a page into a main topic and supporting sections. This tool checks for one H1 and shows the saved H2-H6 structure.
Recommended action
Use H1 for the main subject and H2/H3 for logical subsections, rather than selecting levels for visual size alone.
Targets and suggested changes
Targethttps://hogangnono.com/
Body h1 elements
If multiple H1s are shown, choose the main topic and use suitable subsection levels for the others. If absent, add the main heading near the start of content.
View evidence and example changes
Observed content
0
Example - adapt to the actual content and environment
<h1>Main topic of this page</h1>
Image alt
Needs review
1 images; 0 with non-empty alt; 1 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.
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://www.facebook.com/tr?id=2327168840874384&ev=PageView&noscript=1" alt="Describe the actual image content">
For a decorative image:
<img src="https://www.facebook.com/tr?id=2327168840874384&ev=PageView&noscript=1" alt="">
Language
Passed
ko
The html lang attribute identifies the document’s primary language and helps assistive software select pronunciation.
Keep in mind
Match lang to the main content and mark passages written in another language as appropriate.
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
0.1%
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://hogangnono.com/
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
0.1%
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.
H10
H21
H30
H40
H50
H60
H1
No H1 heading was found.
H2 1View headings
호갱노노의 강력한 기능을무료로 사용해보세요.
H3 0View headings
No headings at this level.
Images and alternative text1 saved
Up to 100 images are saved. Review an image’s purpose when its alt text is empty.
HTML response line 9992 · /html/body/div[2]/div/div[1]/div[1]/div[2]/div/ul/li[6]/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.
Viewport metadata enables device-width layouts. It is not a test of real mobile layout or touch targets.
Keep in mind
Check width=device-width, then inspect overflow, zoom, forms and buttons on a small screen.
Favicon
Passed
The current check passed.
This detects a link declaration for a browser icon, rather than verifying its rendered appearance.
Keep in mind
Check that the icon file loads and remains recognizable on light and dark browser surfaces.
Apple touch icon
Passed
The current check passed.
This detects a touch icon declaration for saved home-screen shortcuts.
Keep in mind
Review the icon’s dimensions, padding and background, then inspect it on an actual device.
Modern images
Needs review
0/1
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.
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.
There are no warning or unknown checks in this section.
05
Technical checks
8 checks
Doctype
Passed
html
The doctype declaration helps browsers render HTML in standards mode.
Keep in mind
Place <!doctype html> at the start of the document and check for unintended output before it.
CSS files
Passed
4
Tool heuristic: up to 4 external files
This counts external stylesheet declarations. Count alone does not measure transfer size, caching or render blocking.
Keep in mind
Inspect duplicate or unused CSS and render blocking, then prioritize changes using actual performance measurements.
JavaScript files
Passed
2
Tool heuristic: up to 6 external files
This counts script elements with src attributes. File count alone cannot measure execution cost or responsiveness.
Keep in mind
Review duplicated scripts and expensive startup work; consider defer, async or delayed execution where appropriate.
Compression
Passed
gzip
This checks the HTML Content-Encoding header. Compression can reduce transfer size, with savings depending on the response.
Keep in mind
Review text compression on the server or CDN, treating already compressed image formats separately.
Security headers
Needs review
1/6
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://hogangnono.com/
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://hogangnono.com/sitemap/index.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://hogangnono.com/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
# 실거래가부터 집 구하기까지, 호갱노노
- [Home](https://hogangnono.com/)
AI crawlers
Needs review
AI search/answer bots allowed 0/5 · training bots allowed 0/3
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.
Recommended action
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.
Targets and suggested changes
Targethttps://hogangnono.com/robots.txt
User-agent: OAI-SearchBot
Adjust this group’s root Disallow only if you intend to permit the bot. Keep deliberate blocks and existing path restrictions.
View evidence and example changes
Observed content
Root path currently blocked
Example - adapt to the actual content and environment
User-agent: OAI-SearchBot
Allow: /
Targethttps://hogangnono.com/robots.txt
User-agent: ChatGPT-User
Adjust this group’s root Disallow only if you intend to permit the bot. Keep deliberate blocks and existing path restrictions.
View evidence and example changes
Observed content
Root path currently blocked
Example - adapt to the actual content and environment
User-agent: ChatGPT-User
Allow: /
Targethttps://hogangnono.com/robots.txt
User-agent: Claude-SearchBot
Adjust this group’s root Disallow only if you intend to permit the bot. Keep deliberate blocks and existing path restrictions.
View evidence and example changes
Observed content
Root path currently blocked
Example - adapt to the actual content and environment
User-agent: Claude-SearchBot
Allow: /
Targethttps://hogangnono.com/robots.txt
User-agent: Claude-User
Adjust this group’s root Disallow only if you intend to permit the bot. Keep deliberate blocks and existing path restrictions.
View evidence and example changes
Observed content
Root path currently blocked
Example - adapt to the actual content and environment
User-agent: Claude-User
Allow: /
Targethttps://hogangnono.com/robots.txt
User-agent: PerplexityBot
Adjust this group’s root Disallow only if you intend to permit the bot. Keep deliberate blocks and existing path restrictions.
View evidence and example changes
Observed content
Root path currently blocked
Example - adapt to the actual content and environment
User-agent: PerplexityBot
Allow: /
There are no warning or unknown checks in this section.
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.