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Rank Tracker Competitor Keywords

GET
/api/v1/competitor_keywords
curl --request GET \
  --url 'https://sitechecker.pro/api/v1/competitor_keywords?project_id=12345&date_from=2026-02-22&date_to=2026-05-22&search_engine=google&device=desktop&location_id=loc_TmV3IFlvcmssVW5pdGVkIFN0YXRlcw&language_code=en&group_id=SG9tZSBQYWdlcw&rankings=all&movement_window=1d&serp_feature=ads&fields=cpc&limit=50&offset=0' \
  --header 'Authorization: Bearer <token>'

Returns tracked keywords with the project’s and selected competitors’ ranking positions for comparison. The matrix grows with every competitor added, so the response is paginated by keyword rows.

Authorizations

Section titled “Authorizations”

Parameters

Section titled “Parameters”

Query Parameters

Section titled “Query Parameters”
project_id
required
integer
Example
12345

Project ID.

date_from
required
string format: date
Example
2026-02-22

Start of the Rank Tracker date range (inclusive, Y-m-d). Clamped to the project’s available indicator dates.

date_to
required
string format: date
Example
2026-05-22

End of the Rank Tracker date range (inclusive, Y-m-d). Visibility-style fields are snapshots for the latest available check within this range (as_of_date).

keyword
string

Substring keyword text search.

tracked_keyword_id
integer

Direct lookup of one tracked keyword row.

search_engine
string
Example
google

Search engine machine value from rank_tracker_filter_values (e.g. google).

device
string
Allowed values: desktop mobile tablet

Device filter.

location_id
string
Example
loc_TmV3IFlvcmssVW5pdGVkIFN0YXRlcw

Opaque location id from rank_tracker_filter_values tracking_profiles (loc_… value).

language_code
string
Example
en

Language code (ISO alpha-2) from rank_tracker_filter_values.

group_id
string
Example
SG9tZSBQYWdlcw

Keyword group id from the groups endpoint (opaque value).

competitor_id
integer

Return matrix data for one tracked competitor (id from competitor_domains). The main domain row is always included.

rankings
string
default: all
Allowed values: all top_1 top_3 top_10 top_30 top_50 top_100 no_position moved_up moved_down not_changed

Ranking filter. Bucket filters are cumulative (top_10 = positions 1-10); response distribution buckets are exclusive. Movement filters (moved_up/moved_down/not_changed) compare against the movement_window snapshot.

movement_window
string
default: 7d
Allowed values: 1d 7d 30d 90d all_time

Comparison window for movement rankings filters. Only valid with rankings=moved_up, moved_down or not_changed. Default: 7d.

serp_feature
string
Allowed values: ads featured_snippet people_also_ask shopping top_carousel video

Filter keywords whose SERP contains the feature.

volume_from
integer

Minimum search volume.

volume_to
integer

Maximum search volume.

fields
string
Allowed values: cpc serp_features

Comma-separated extra keyword metadata: cpc, serp_features.

order_by
string

Sort as “_asc” or “_desc”. Sortable fields: keyword, volume.

limit
integer
default: 50 >= 1 <= 50

Page size. Rank Tracker list endpoints cap at 50 rows per request.

offset
integer
0

Pagination offset.

Responses

Section titled “Responses”

200

Section titled “200”

Paginated keyword rows with domain positions

Media typeapplication/json
object
data
Array<object>

Keyword x competitors matrix row. domains[] lists the main domain first; position_change is positive when the domain moved up over the selected range.

object
tracked_keyword_id

Tracked keyword id.

integer
keyword

Keyword text.

string
search_engine

Search engine the keyword is tracked on.

string
nullable
device

Device the keyword is tracked on.

string
nullable
location_id

Id of the tracked location.

string
nullable
location_name

Display name of the tracked location.

string
nullable
country_code

Country the keyword is tracked for, as ISO-3166-1 alpha-2.

string
nullable
country_name

Display name of that country.

string
nullable
language_code

Language the keyword is tracked for, as ISO-639-1.

string
nullable
language_name

Display name of that language.

string
nullable
volume

Monthly search volume.

integer
nullable
cpc

Only with fields=cpc.

number format: float
nullable
serp_features

Only with fields=serp_features.

Array<string>
nullable
domains

One entry per domain in the comparison — the project and the selected competitors — with the position each holds for this keyword.

Array<object>
object
domain

Domain the row is for.

string
is_main_domain

True on the project row.

boolean
competitor_id

Tracked competitor id. Null on the project row.

integer
nullable
position

Position this domain holds for the keyword. Null when it does not rank in the top 100.

integer
nullable
position_change

Position change against the comparison period. Negative means the ranking improved.

integer
nullable
meta
object
total

Reusable OpenAPI response schemas for the Public REST API: the error/meta envelope and one item schema per resource. Property names come from the Field registry so the documented contract and the runtime response shapes stay in lock-step.

integer
limit

Page size that was applied.

integer
offset

Pagination offset that was applied.

integer
Example
{
  "data": [
    {
      "tracked_keyword_id": 123456,
      "keyword": "ai overview checker",
      "search_engine": "google",
      "device": "desktop",
      "location_id": "loc_TmV3IFlvcmssVW5pdGVkIFN0YXRlcw",
      "location_name": "New York,United States",
      "country_code": "US",
      "country_name": "United States",
      "language_code": "en",
      "language_name": "English",
      "volume": 30,
      "cpc": 11.75,
      "domains": [
        {
          "domain": "sitechecker.pro",
          "is_main_domain": true,
          "competitor_id": 456,
          "position": 2,
          "position_change": 11
        }
      ]
    }
  ],
  "meta": {
    "total": 137,
    "limit": 50,
    "offset": 0
  }
}

401

Section titled “401”

Missing or invalid API key

Media typeapplication/json

Returned as INVALID_API_KEY when the key is missing or unknown, and as REVOKED_API_KEY when the key exists but was revoked — the latter needs a new key.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid or missing API key."
  }
}

403

Section titled “403”

No active API entitlement for the account, or the project belongs to another account

Media typeapplication/json

Returned as MISSING_PUBLIC_API_ACCESS when the account has no active API entitlement, and as ACCESS_DENIED when the requested project belongs to another account.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
  "error": {
    "code": "MISSING_PUBLIC_API_ACCESS",
    "message": "API access is not available: the account has no active API entitlement."
  }
}

404

Section titled “404”

Project not found

Media typeapplication/json

The exact missing resource is in error.code: PROJECT_NOT_FOUND, SEGMENT_NOT_FOUND, CRAWL_NOT_FOUND, KEYWORD_NOT_FOUND, OPPORTUNITY_NOT_FOUND, SNAPSHOT_UNAVAILABLE or NOT_FOUND.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
  "error": {
    "code": "PROJECT_NOT_FOUND",
    "message": "Project not found."
  }
}

422

Section titled “422”

Validation error

Media typeapplication/json

Rejected query parameters. error.code is VALIDATION_ERROR for parameter validation (including a query parameter the endpoint does not accept), or INVALID_DATE_RANGE / INVALID_FILTER / INVALID_EVENT_TYPE / UNSUPPORTED_FILTER / UNSUPPORTED_DIMENSION / UNSUPPORTED_METRIC / UNSUPPORTED_SCOPE / SEGMENT_FILTER_UNSUPPORTED for module-specific rules.

object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "project_id is required."
  }
}

429

Section titled “429”

Rate limit exceeded — retry after the interval in the Retry-After header

Media typeapplication/json
object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
  "error": {
    "code": "RATE_LIMIT_EXCEEDED",
    "message": "Rate limit exceeded. Try again later."
  }
}

500

Section titled “500”

Internal server error

Media typeapplication/json
object
error
required
object
code
required
string
Allowed values: VALIDATION_ERROR BAD_REQUEST PROJECT_NOT_FOUND SEGMENT_NOT_FOUND ACCESS_DENIED CRAWL_IN_PROGRESS NOT_FOUND UPSTREAM_ERROR INVALID_API_KEY REVOKED_API_KEY RATE_LIMIT_EXCEEDED MISSING_PUBLIC_API_ACCESS INTERNAL_ERROR CRAWL_NOT_FOUND INVALID_DATE_RANGE INVALID_FILTER INVALID_EVENT_TYPE KEYWORD_NOT_FOUND OPPORTUNITY_NOT_FOUND SNAPSHOT_UNAVAILABLE GSC_NOT_CONNECTED GA4_NOT_CONNECTED SITE_AUDIT_DATA_UNAVAILABLE GA4_DATA_UNAVAILABLE UNSUPPORTED_FILTER UNSUPPORTED_DIMENSION UNSUPPORTED_METRIC SEGMENT_FILTER_UNSUPPORTED UNSUPPORTED_SCOPE AI_OVERVIEW_DATA_UNAVAILABLE PROMPT_DATA_UNAVAILABLE
message
required
string
Example
{
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal server error."
  }
}