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BLAST® Command Line Applications User Manual [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2008-.

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BLAST® Command Line Applications User Manual [Internet].

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Privacy

Created: ; Last Update: January 7, 2021.

Estimated reading time: 1 minute

Privacy Statement

The BLAST+ executables are command-line tools that you run on non-NCBI computers. No information about your search is sent over the network, unless you explicitly elect to. This offers you greater privacy control than using web tools or the -remote option on a BLAST+ executable.

For quality monitoring, the BLAST+ executables, starting with the 2.11.0 release, send some information about usage statistics back to NCBI. This information is limited to the name of the BLAST executable (e.g., blastp), database metadata, a few BLAST parameters, as well the number and total size of your queries without any data association that might reveal the context of your research. No sequences from your queries or database are sent to the NCBI. An example list is below.

These reports help us improve BLAST as well as measure our impact on the community, which in turn justifies funds to support and further develop BLAST, so please report your usage.

Opt-out of Usage Reporting

You can opt-out of the usage reporting by adding a .ncbirc (UNIX like) or ncbi.ini (Windows) configuration file. In the configuration file you should add a line under the BLAST section to set BLAST_USAGE_REPORT to false. See here for details on setting up a configuration file.

You may also opt-out of the usage reporting by setting the environment variable BLAST_USAGE_REPORT to false. In bash (under LINUX) this command would look like:

export BLAST_USAGE_REPORT=false

Note that this environment variable is only set in the shell (i.e. window) you are currently using and will not be set the next time you login. To permanently opt-out, this variable should be set every time a new shell is opened or with a configuration file, as described above.

You can also set this environment variable, turning off usage reporting, when using BLAST+ docker by adding the -e option to your docker invocation:

-e BLAST_USAGE_REPORT=false

Below is the information that would be reported for a BLASTP search

IP=27.18.28.18
comp_based_stats=2
db_date=Aug 26, 2020 3:12 AM
db_length=179658219
db_name=swissprot
db_num_seqs=474714
evalue_threshold=10.000000
exit_status=0
hitlist_size=500
ncbi_app=standalone-blast
ncbi_location=be-md
ncbi_role=production
num_queries=1
num_threads=2
os=UNIX
output_fmt=11
program=blastp
queries_length=656
run_time=3.076507
task=blastp
version=2.11.0

The NLM privacy policy is available here

Copyright Notice

BLAST is a Registered Trademark of the National Library of Medicine

Bookshelf ID: NBK569851

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