The indexable web is more than 11.5 billion pages.

@inproceedings{gulli-2005-indexable, author = {Antonio Gulli and Alessio Signorini}, editor = {Allan Ellis and Tatsuya Hagino}, title = {{The indexable web is more than 11.5 billion pages}}, booktitle = {{Proceedings of the 14th international conference on World Wide Web, WWW 2005, Chiba, Japan, May 10-14, 2005 - Special interest tracks and posters}}, pages = {902--903}, publisher = {ACM}, year = {2005}, url = {https://doi.org/10.1145/1062745.1062789}, doi = {https://doi.org/10.1145/1062745.1062789} }