Sandbox (supplemental Index)

It is believed that Google has a second index, the Sandbox. Some new pages are considered protected until Google decides they should appear in the main index it displays for standard searches. Sandbox websites don't show up in regular searches, which hurts your site's search engine optimization.

Literal Meanings of Sandbox (supplemental Index)

Sandbox:

Meanings of Sandbox:

playground consisting of a sandbox.
Sand-filled box in the form of a metal mould.
Container with sand or pumice stone, previously used for the tissue paper.
Pet bath.
The locomotives have a bucket from which sand is poured onto the rails in front of the driving wheels to prevent slipping.
An isolated area in which a program can operate with limited resources.
(WMF Wiktionary and Jargon) A page on a wiki where users can experiment without destroying or damaging legitimate content.
(usually Sandbox) Middle East.
Limit (a program, etc.) by isolating it.

Sentences of Sandbox

Running a program in a sandbox can prevent system damage.

Supplemental:

Meanings of Supplemental:

Something that complements or adds.
A proposal or legal act that provides additional funding for a program.
Complete law.
Appendix.
Lack of regular flight schedule (such as an additional airline).

Index:

Meanings of Index:

Alphabetical list of objects and their location.
Index by index.
Move your finger over a gauge, scale, etc.
A character resembling a pointing hand, used to draw attention to a note or paragraph.
What it indicates, what it shows, indicates, manifests or reveals.
Sign, insinuate, sign.
A type of noun whose form value changes depending on context. For example, today's newspaper is a form of index, as the referent will change depending on the context. See also Symbol and Icon.
A unique number calculated from a range of prices or quantities.
A number that represents a property or relationship, a factor.
An embossed suffix denoting strength.
An integer or other key indicating the location of the data, e.g. in an array, vector, database table, associative array, or hash table.
A data structure that improves the performance of operations on a table.
Prologue with the following.
Organize an index for everything, especially long text.
Inventory, inventory.
Normalize inflation to correct inflation by linking it to a price index to maintain real levels.
Ser index to indicate (situation or state of affairs).
Access a value in a data container through an index.