Breadth-first crawling yields high-quality pages.

@inproceedings{najork-2001-breadthfirst, author = {Marc Najork and Janet L. Wiener}, editor = {Vincent Y. Shen and Nobuo Saito and Michael R. Lyu and Mary Ellen Zurko}, title = {{Breadth-first crawling yields high-quality pages}}, booktitle = {{Proceedings of the Tenth International World Wide Web Conference, WWW 10, Hong Kong, China, May 1-5, 2001}}, pages = {114--118}, publisher = {ACM}, year = {2001}, url = {https://doi.org/10.1145/371920.371965}, doi = {https://doi.org/10.1145/371920.371965} }