etoos.co.kr SEO report

A review of search visibility and page content.

Visit website
37/ 100

OVERALL SEO SCORE

Review your next improvements

Checks are based on public HTML and responses. Review the evidence and recommended actions below.

Passed14
Needs review16
Not checked1
Analyzed Checks 31

The score excludes checks that could not be completed.

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etoos.co.kr
etoos.co.kr Screenshot

NEXT STEPS

Recommended next steps

Up to four findings, ordered by check weight.

Detailed findings

Review the observed values, context and actions for each check.

02

Content and images

5 checks

Headings

Needs review
H1 0 / H2 0 / H3 0

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://www.etoos.com:443/home/default.asp

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

Passed
0 images; 0 with non-empty alt; 0 empty or missing

Alternative text conveys an image’s meaning. The count includes images with non-empty alt text.

Keep in mind

Describe informative images in context. Empty alt="" can be appropriate for decorative images, so inspect their purpose before changing them.

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://www.etoos.com:443/home/default.asp

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
euc-kr

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
3.37%

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://www.etoos.com:443/home/default.asp

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
3.37%

Heading structure

Saved headings, up to 50 per level. Expand the H2-H6 lists when needed.

H10
H20
H30
H40
H50
H60
H1

No H1 heading was found.

H2 0View headings

No headings at this level.

H3 0View headings

No headings at this level.

Images and alternative text0 saved

Up to 100 images are saved. Review an image’s purpose when its alt text is empty.

URLImage alt
KeywordsFrequency and metadata

Word occurrence counts from extracted content, not search demand or keyword rankings.

new49 선생님39 국어35 박광일35 파이널33 수학32 업데이트32 강좌31 모의고사26 영어25 김민정25 교재23 영상21 22개정20 정승제18 수능17 이투스16 전체보기16 김동하14 가장12

Meta keywords · Not found

Meta keywords do not contribute to this tool’s score.

04

Mobile experience

5 checks

Viewport

Needs review
The expected configuration was not detected.

Viewport metadata enables device-width layouts. It is not a test of real mobile layout or touch targets.

Recommended action

Check width=device-width, then inspect overflow, zoom, forms and buttons on a small screen.

Targets and suggested changes

Targethttps://www.etoos.com:443/home/default.asp

Response HTML <head>

Update the existing viewport tag instead of duplicating it, then check the mobile layout.

View evidence and example changes
Example - adapt to the actual content and environment
<meta name="viewport" content="width=device-width, initial-scale=1">

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

Needs review
The expected configuration was not detected.

This detects a touch icon declaration for saved home-screen shortcuts.

Recommended action

Review the icon’s dimensions, padding and background, then inspect it on an actual device.

Targets and suggested changes

Targethttps://www.etoos.com:443/home/default.asp

Response HTML <head>

Prepare a home-screen icon and declare its real path rather than adding a tag without a file.

View evidence and example changes
Example - adapt to the actual content and environment
<link rel="apple-touch-icon" href="/apple-touch-icon.png">

Modern images

Passed
0/0

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.

Keep in mind

Compare quality and file size, and inspect the actual delivered format in browser developer tools.

Lazy loading

Passed
0/0

This detects loading="lazy" on img elements. Pages with few images can pass the tool’s heuristic without it.

Keep in mind

Consider lazy loading below-the-fold images while keeping prominent first-screen images promptly available.

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
0

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
0

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

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://www.etoos.com:443/home/default.asp

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://www.etoos.com:443/home/default.asp

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.

View evidence and example changes
Observed content
strict-transport-security
content-security-policy
x-content-type-options
x-frame-options
referrer-policy
permissions-policy
Example - adapt to the actual content and environment
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin

HTTPS

Passed
https://www.etoos.com:443/home/default.asp

This checks whether the final analyzed page used HTTPS. It is not a security audit of the whole site.

Keep in mind

Review certificate validity, mixed content and HTTPS on important linked pages and forms.

HTTPS redirect

Passed
https://www.etoos.com:443/home/default.asp

This checks whether a request starting over HTTP ends on HTTPS.

Keep in mind

Configure consistent HTTP-to-HTTPS redirects and check for unnecessary chains or loops.

W3C validity

Not checked
Not verified in this analysis.

These are HTML validation results from W3C Nu, not a ranking, accessibility or security certification.

Recommended action

Check network restrictions and provider availability before retrying. An unknown result is not a confirmed failure or a zero score.

Security response headersView values
strict-transport-security
Not found
content-security-policy
Not found
x-content-type-options
Not found
x-frame-options
Not found
referrer-policy
Not found
permissions-policy
Not found
W3C messages0 saved

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://www.etoos.com/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://www.etoos.com:443/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
# 

- [Home](https://www.etoos.com:443/home/default.asp)

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://www.etoos.com:443/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://www.etoos.com:443/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://www.etoos.com:443/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://www.etoos.com:443/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://www.etoos.com:443/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: /

Bot access to the root path

OAI-SearchBot Search/answerBlocked
ChatGPT-User Search/answerBlocked
Claude-SearchBot Search/answerBlocked
Claude-User Search/answerBlocked
PerplexityBot Search/answerBlocked
GPTBot TrainingBlocked
ClaudeBot TrainingBlocked
Google-Extended TrainingBlocked
robots.txt sourceExpand
User-agent: Yeti
Allow: /

User-agent: Googlebot
Allow: /
Sitemap: https://www.etoos.com/sitemap.xml
Disallow: /_test/
Disallow: /AllPass/
Disallow: /api/
Disallow: /board/
Disallow: /book/
Disallow: /cache/
Disallow: /cache_web/
Disallow: /common/
Disallow: /Community/
Disallow: /construction/
Disallow: /controller/
Disallow: /customer_2018/
Disallow: /dev_test/
Disallow: /edu_gpt/
Disallow: /email/
Disallow: /eplus/
Disallow: /EtoosLivePlayer/
Disallow: /EtoosPlayer/
Disallow: /gatedb/
Disallow: /hietoos/
Disallow: /hope_study/
Disallow: /liveclass/
Disallow: /member/
Disallow: /mobileintro/
Disallow: /mystudyroom/
Disallow: /nsu/
Disallow: /pmpdown/
Disallow: /pmpPlus/
Disallow: /prego1/
Disallow: /premium_class/
Disallow: /PremiumClass/
Disallow: /PremiumEBS/
Disallow: /SchoolReport_2019/
Disallow: /sdij5/
Disallow: /senior/
Disallow: /skymd/
Disallow: /studycafe/
Disallow: /studyclub/
Disallow: /teacher/board/
Disallow: /teacher/Evaluate/
Disallow: /test/
Disallow: /upload/
Disallow: /webhooks/
Disallow: /ymdr/
Disallow: /mystudyroom*/
Disallow: /*mystudy*
Disallow: /*my_room*
Disallow: /customer/help*
Disallow: /teacher/board/sub04*
Disallow: /*counseling*
Disallow: /*.hwp$
Disallow: /*.pdf$
Disallow: /*.ppt$
Disallow: /*.doc$
Disallow: /*.xls$
Disallow: /*.xlsx$
Disallow: /*.zip$

User-agent: *
Disallow: /
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.