Backlinks
Query parameters
A manual timeout duration in seconds.
The number of results to return.
A column to order results by. See the response schema for valid column identifiers, except for link_group_count, which is not supported in order_by for this endpoint.
The filter expression. The following column identifiers are recognized (this differs from the identifiers recognized by the select parameter).
ahrefs_rank_source: The strength of the referring domain's backlink profile compared to the other websites in our database, with rank #1 being the strongest.
type: integer
ahrefs_rank_target: The strength of the target domain's backlink profile compared to the other websites in our database, with rank #1 being the strongest.
type: integer
alt: The alt attribute of the link.
type: string nullable
anchor: The clickable words in a link that point to a URL.
type: string
broken_redirect_new_target: The new destination of a modified redirect.
type: string nullable
broken_redirect_reason: The reason the redirect was considered broken during the last crawl.
type: string nullable
enum: "droppedmanual" "droppedtooold" "dropped" "codechanged" "nxdomain" "robotsdisallowed" "curlerror" "invalidtarget" "nomorecanonical" "isnowparked" "targetchanged"
broken_redirect_source: The redirecting URL that was modified, causing the redirect to become broken.
type: string nullable
class_c (5 units): The number of unique class_c subnets linking to the referring page.
type: integer
discovered_status: The reason the link was discovered during the last crawl: the page was crawled for the first time, the link was added to the page, or the link re-appeared after being removed.
type: string nullable
enum: "pagefound" "linkfound" "linkrestored"
domain_rating_source: The strength of the referring domain's backlink profile compared to the others in our database on a 100-point scale.
type: float
domain_rating_target: The strength of the referring domain's backlink profile compared to the others in our database on a 100-point scale.
type: float
drop_reason: The reason we removed the link from our index.
type: string nullable
enum: "manual" "noratingunused" "notop" "tooold" "oldunavailable" "rescursive" "duplicate" "nxdomain" "malformed" "blockedport" "disallowed" "unlinked"
encoding: The character set encoding of the referring page HTML.
type: string
first_seen: The date the referring page URL was first discovered.
type: datetime
first_seen_link: The date we first found a backlink to your target on a given referring page.
type: datetime
http_code: The return code from HTTP protocol returned during the referring page crawl.
type: integer
http_crawl: The link was discovered without executing javascript and rendering the page.
type: boolean
ip_source: The referring domain IP address.
type: string nullable
is_alternate: The link with the rel=“alternate” attribute.
type: boolean
is_canonical: The link with the rel=“canonical” attribute.
type: boolean
is_content: The link was found in the biggest piece of content on the page.
type: boolean
is_dofollow: The link has no special nofollow attribute.
type: boolean
is_form: The link was found in a form HTML tag.
type: boolean
is_frame: The link was found in an iframe HTML tag.
type: boolean
is_homepage_link: The link was found on the homepage of a referring website.
type: boolean
is_image: The link is a regular link that has an image inside their href attribute.
type: boolean
is_lost: The link currently does not exist anymore.
type: boolean
is_new: The link was discovered on the last crawl.
type: boolean
is_nofollow: The link or the referring page has the nofollow attribute set.
type: boolean
is_non_html: The link points to a URL with non-HTML content.
type: boolean
is_redirect: The link pointing to your target via a redirect.
type: boolean
is_redirect_lost: The redirected link currently does not exist anymore.
type: boolean
is_root_source: The referring domain name is a root domain name.
type: boolean
is_root_target: The target domain name is a root domain name.
type: boolean
is_rss: The link was found in an RSS feed.
type: boolean
is_spam: Indicates whether the backlink comes from a known spammy domain.
type: boolean
is_sponsored: The link has the Sponsored attribute set in the referring page HTML.
type: boolean
is_text: The link is a standard href hyperlink.
type: boolean
is_ugc: The link has the User Generated Content attribute set in the referring page HTML.
type: boolean
js_crawl: The link was discovered after executing javascript and rendering the page.
type: boolean
languages: The languages listed in the referring page metadata or detected by the crawler to appear in the HTML.
type: array(string)
last_seen: The date we discovered that the link was lost.
type: datetime nullable
last_visited: The date we last verified a live link to your target page.
type: datetime
len_url_redirect: The number of redirect chain URLs.
type: integer
link_group_count: The number of backlinks that were grouped together based on the aggregation parameter. This field cannot be used with aggregation 'all'.
type: integer
link_type: The kind of the backlink.
type: string
enum: "redirect" "frame" "text" "form" "canonical" "alternate" "rss" "image"
linked_domains_source_domain: The number of unique root domains linked from the referring domain.
type: integer
linked_domains_source_page: The number of unique root domains linked from the referring page.
type: integer
linked_domains_target_domain: The number of unique root domains linked from the target domain.
type: integer
links_external: The number of external links from the referring page.
type: integer
links_internal: The number of internal links from the referring page.
type: integer
lost_reason: The reason the link was lost during the last crawl.
type: string nullable
enum: "removedfromhtml" "notcanonical" "noindex" "pageredirected" "pageerror" "lostredirect" "notfound"
name_source: The complete referring domain name, including subdomains.
type: string
name_target: The complete target domain name, including subdomains.
type: string
noindex: The referring page has the noindex meta attribute.
type: boolean
page_category_source: Comma-separated list of AI-predicted hierarchical category paths for the referring page. Each value is a slash-prefixed path (e.g. /Business_and_Industrial/Advertising_and_Marketing/Marketing).
type: string nullable
page_size: The size in bytes of the referring page content.
type: integer
page_type_source: Comma-separated list of AI-predicted hierarchical page type paths for the referring page. Each value is a slash-prefixed path (e.g. /Article/How_to).
type: string nullable
port_source: The network port of the referring page URL.
type: integer
port_target: The network port of the target page URL.
type: integer
positions: The number of keywords that the referring page ranks for in the top 100 positions.
type: integer
positions_source_domain: The number of keywords that the referring domain ranks for in the top 100 positions.
type: integer
powered_by: Web technologies used to build and serve the referring page content.
type: array(string)
redirect_code: The HTTP status code of a referring page pointing to your target via a redirect.
type: integer nullable
redirect_kind: The HTTP status codes returned by the target redirecting URL or redirect chain.
type: array(integer)
refdomains_source (5 units): The number of unique referring domains linking to the referring page.
type: integer
refdomains_source_domain (5 units): The number of unique referring domains linking to the referring domain.
type: integer
refdomains_target_domain (5 units): The number of unique referring domains linking to the target domain.
type: integer
root_name_source: The root domain name of the referring domain, not including subdomains.
type: string
root_name_target: The root domain name of the target domain, not including subdomains.
type: string
snippet_left: The snippet of text appearing just before the link.
type: string
snippet_right: The snippet of text appearing just after the link.
type: string
source_page_author: The author of the referring page.
type: string nullable
source_page_publish_date: the date we identified the page was published
type: date nullable
title: The html title of the referring page.
type: string
tld_class_source: The top level domain class of the referring domain.
type: string
enum: "gov" "edu" "normal"
tld_class_target: The top level domain class of the target domain.
type: string
enum: "gov" "edu" "normal"
traffic (10 units): The referring page's estimated monthly organic traffic from search.
type: integer
traffic_domain (10 units): The referring domain's estimated monthly organic traffic from search.
type: integer
url_from: The URL of the page containing a link to your target.
type: string
url_from_plain: The referring page URL optimized for use as a filter.
type: string
url_rating_source: The strength of the referring page's backlink profile compared to the others in our database on a 100-point scale.
type: float
url_redirect: A redirect chain the target URL of the link points to.
type: array(url)
url_redirect_with_target: The target URL of the link with its redirect chain.
type: array(string)
url_to: The URL the backlink points to.
type: string
url_to_plain: The target page URL optimized for use as a filter.
type: string
A comma-separated list of columns to return. See response schema for valid column identifiers.
The protocol of your target.
The target of the search: a domain or a URL.
The scope of the search based on the target you entered.
The backlinks grouping mode.
A time frame to add lost backlinks to the report. Choose between live (no history), since:<date> (history since a specified date), and all_time (full history). The date should be in YYYY-MM-DD format.
The output format.
Responses
The strength of the referring domain's backlink profile compared to the other websites in our database, with rank #1 being the strongest.
The strength of the target domain's backlink profile compared to the other websites in our database, with rank #1 being the strongest.
The alt attribute of the link.
The clickable words in a link that point to a URL.
The new destination of a modified redirect.
The reason the redirect was considered broken during the last crawl.
The redirecting URL that was modified, causing the redirect to become broken.
(5 units) The number of unique class_c subnets linking to the referring page.
The reason the link was discovered during the last crawl: the page was crawled for the first time, the link was added to the page, or the link re-appeared after being removed.
The strength of the referring domain's backlink profile compared to the others in our database on a 100-point scale.
The strength of the referring domain's backlink profile compared to the others in our database on a 100-point scale.
The reason we removed the link from our index.
The character set encoding of the referring page HTML.
The date the referring page URL was first discovered.
The date we first found a backlink to your target on a given referring page.
The return code from HTTP protocol returned during the referring page crawl.
The link was discovered without executing javascript and rendering the page.
The referring domain IP address.
The link with the rel=“alternate” attribute.
The link with the rel=“canonical” attribute.
The link was found in the biggest piece of content on the page.
The link has no special nofollow attribute.
The link was found in a form HTML tag.
The link was found in an iframe HTML tag.
The link is a regular link that has an image inside their href attribute.
The link currently does not exist anymore.
The link was discovered on the last crawl.
The link or the referring page has the nofollow attribute set.
The link pointing to your target via a redirect.
The redirected link currently does not exist anymore.
The referring domain name is a root domain name.
The target domain name is a root domain name.
The link was found in an RSS feed.
Indicates whether the backlink comes from a known spammy domain.
The link has the Sponsored attribute set in the referring page HTML.
The link is a standard href hyperlink.
The link has the User Generated Content attribute set in the referring page HTML.
The link was discovered after executing javascript and rendering the page.
The languages listed in the referring page metadata or detected by the crawler to appear in the HTML.
The date we discovered that the link was lost.
The date we last verified a live link to your target page.
The number of backlinks that were grouped together based on the aggregation parameter. This field cannot be used with aggregation 'all'.
The kind of the backlink.
The number of unique root domains linked from the referring domain.
The number of unique root domains linked from the referring page.
The number of unique root domains linked from the target domain.
The number of external links from the referring page.
The number of internal links from the referring page.
The reason the link was lost during the last crawl.
The complete referring domain name, including subdomains.
The complete target domain name, including subdomains.
The referring page has the noindex meta attribute.
Comma-separated list of AI-predicted hierarchical category paths for the referring page. Each value is a slash-prefixed path (e.g. /Business_and_Industrial/Advertising_and_Marketing/Marketing).
The size in bytes of the referring page content.
Comma-separated list of AI-predicted hierarchical page type paths for the referring page. Each value is a slash-prefixed path (e.g. /Article/How_to).
The network port of the referring page URL.
The network port of the target page URL.
The number of keywords that the referring page ranks for in the top 100 positions.
Web technologies used to build and serve the referring page content.
The HTTP status code of a referring page pointing to your target via a redirect.
The HTTP status codes returned by the target redirecting URL or redirect chain.
(5 units) The number of unique referring domains linking to the referring page.
(5 units) The number of unique referring domains linking to the referring domain.
(5 units) The number of unique referring domains linking to the target domain.
The root domain name of the referring domain, not including subdomains.
The root domain name of the target domain, not including subdomains.
The snippet of text appearing just before the link.
The snippet of text appearing just after the link.
The author of the referring page.
the date we identified the page was published
The html title of the referring page.
The top level domain class of the referring domain.
The top level domain class of the target domain.
(10 units) The referring page's estimated monthly organic traffic from search.
(10 units) The referring domain's estimated monthly organic traffic from search.
The URL of the page containing a link to your target.
The referring page URL optimized for use as a filter.
The strength of the referring page's backlink profile compared to the others in our database on a 100-point scale.
A redirect chain the target URL of the link points to.
The target URL of the link with its redirect chain.
The URL the backlink points to.
The target page URL optimized for use as a filter.