Skip to main content

Rel Anchor Fields

📘 Field descriptions for hreflang tag analysis, including incoming hreflang counts, validity, error types, and x-default coverage.

Overview

Rel Anchors fields analyze hreflang tags, the HTML attributes that tell search engines which language and regional versions of a page exist. Botify evaluates both incoming hreflang (tags on other pages pointing to this URL) and outgoing hreflang (tags on this page pointing to other language variants), flagging misconfigured or missing reciprocal tags.

Datasets and API collection

  • Available in: SiteCrawler · RealKeywords

  • For API users: These fields are available in the Crawl BQL collection.

Incoming Hreflang

These fields describe hreflang tags on other pages that point to this URL as a language/region variant.

Field name

API identifier

Kind

Type

Description

No. of Incoming Hreflang

rel.hreflang.in.nb

metric

integer

The total number of hreflang tags on other pages that point to this URL.

No. of Valid Incoming Hreflang

rel.hreflang.in.valid.nb

metric

integer

The number of correctly configured incoming hreflang tags pointing to this URL.

No. of Invalid Incoming Hreflang

rel.hreflang.in.not_valid.nb

metric

integer

The number of misconfigured or invalid incoming hreflang tags pointing to this URL.

Invalid Incoming Hreflang: Error Types

rel.hreflang.in.not_valid.errors

dimension

string

The error types found in invalid incoming hreflang tags pointing to this URL (e.g., missing reciprocal tag, invalid language code).

Invalid Incoming Hreflang: Sources and Values

rel.hreflang.in.not_valid.values

dimension

string

A sample of the source URLs and error details for invalid incoming hreflang tags pointing to this URL.

Receives x-default From Incoming Hreflang

rel.hreflang.in.valid.receives_x-default

dimension

boolean

Whether this URL is designated as the x-default fallback in an incoming hreflang tag — meaning it serves users whose language or region doesn't match any other variant.

Outgoing Hreflang

These fields describe hreflang tags on this page pointing to its language and region variants.

Field name

API identifier

Kind

Type

Description

No. of Outgoing Hreflang

rel.hreflang.out.nb

metric

integer

The total number of hreflang tags on this page pointing to language and region variants.

No. of Valid Outgoing Hreflang

rel.hreflang.out.valid.nb

metric

integer

The number of correctly configured outgoing hreflang tags on this page.

No. of Invalid Outgoing Hreflang

rel.hreflang.out.not_valid.nb

metric

integer

The number of misconfigured or invalid outgoing hreflang tags on this page.


See also:

Did this answer your question?