🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:
Response:
Calculated Shard: 53 (from laksa050)

2. Crawled Status Check

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Response:

3. Robots.txt Check

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Response:

4. Spam/Ban Check

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Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📍
LOCATION
Host 53 · Partition 28
laksa053
7082249407640205653
📄
INDEXABLE
CRAWLED
1 month ago
🤖
ROBOTS ALLOWED

Page Info Filters

FilterStatusConditionDetails
HTTP statusPASSdownload_http_code = 200HTTP 200
Age cutoffPASSdownload_stamp > now() - 6 MONTH1.6 months ago
History dropPASSisNull(history_drop_reason)No drop reason
Spam/banPASSfh_dont_index != 1 AND ml_spam_score = 0ml_spam_score=0
CanonicalPASSmeta_canonical IS NULL OR = '' OR = src_unparsedNot set

Page Details

PropertyValue
URLhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce
Last Crawled2026-04-15 12:47:56 (1 month ago)
First Indexed2013-08-09 20:27:55 (12 years ago)
HTTP Status Code200
Content
Meta TitleArray.prototype.reduce() - JavaScript | MDN
Meta DescriptionThe reduce() method of Array instances executes a user-supplied "reducer" callback function on each element of the array, in order, passing in the return value from the calculation on the preceding element. The final result of running the reducer across all elements of the array is a single value.
Meta Canonicalnull
Boilerpipe Text
heavy column, fetched on demand
Markdown
heavy column, fetched on demand
Readable Markdown
heavy column, fetched on demand
ML Classification
ML Categories
/Computers_and_Electronics
99.1%
/Computers_and_Electronics/Programming
92.2%
/Computers_and_Electronics/Programming/Scripting_Languages
86.8%
Raw JSON
{
    "/Computers_and_Electronics": 991,
    "/Computers_and_Electronics/Programming": 922,
    "/Computers_and_Electronics/Programming/Scripting_Languages": 868
}
ML Page Types
/Article
93.6%
/Article/Tutorial_or_Guide
89.6%
Raw JSON
{
    "/Article": 936,
    "/Article/Tutorial_or_Guide": 896
}
ML Intent Types
Informational
99.9%
Raw JSON
{
    "Informational": 999
}
Content Metadata
Languageen-us
Authornull
Publish Time2025-07-20 13:51:13 (10 months ago)
Original Publish Time2013-08-09 20:27:55 (12 years ago)
RepublishedYes
Word Count (Total)2,087
Word Count (Content)1,449
Links
External Links18
Internal Links200
Technical SEO
Meta NofollowNo
Meta NoarchiveNo
JS RenderedYes
Redirect Targetnull
Performance
Download Time (ms)72
TTFB (ms)68
Download Size (bytes)22,843
Location
Host ID53 (laksa053)
Partition ID28
Root Hash7082249407640205653
Unparsed URLorg,mozilla!developer,/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce s443